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2012 Annual Science Report

Carnegie Institution of Washington Reporting | SEP 2011 – AUG 2012

Executive Summary

The NASA Astrobiology Institute team led by the Carnegie Institution of Washington is dedicated to the study of the extrasolar planets, solar system formation, organic rich primitive planetary bodies, deep sequestration of CHON volatiles in terrestrial planets, prebiotic molecular synthesis through geocatalysis, and the connection between planetary evolution the emergence, and sustenance of biology – processes central to the missions of the NAI. Our program attempts to integrate the sweeping narrative of life’s history through a combination of bottom-up and top-down studies. On the one hand, we study processes related to chemical and physical evolution in plausible prebiotic environments – circumstellar disks, extrasolar planetary systems and the primitive Earth. Complementary to these bottom-up investigations of life’s origin, we will continue our field and experimental top-down efforts to document the nature of microbial life at extreme conditions, as well as the characterization of organic matter in ancient fossils. Both types of efforts inform our development of biotechnological approaches to life detection on other worlds.

Our team’s research focus on life’s chemical and physical evolution, from the interstellar medium, through planetary systems, to the emergence and detection of life, across five integrated and interdisciplinary areas of research:

1. We continue to apply theory and observations to investigate the nature and distribution of extrasolar planets both through radial velocity and astrometric methods, the composition of circumstellar disks, early mixing and transport in young disks, and late mixing and planetary migration in the Solar System, and Solar System bodies.

2. We conduct observational analytical research on the volatile and organic rich Solar System Bodies by focusing on astronomical surveying of outer solar system objects and performing in-house analyses of meteorite, interplanetary dust particle, and Comet Wild 2/81P samples with an emphasis on characterizing the distribution, state and chemical history of primitive organic matter.

3. We study the origin and evolution of the terrestrial planets with a special emphasis on CHON volatiles, their delivery and retention in the deep interiors of terrestrial planets. We will experimentally investigate how CHON volatiles may be retained even during magma ocean phases of terrestrial evolution. We investigate the early Earth’s recycling processes studying the isotopic composition of diamonds, diamond inclusions, and associated lithologies. We address how early geotectonic processes lead to the diversification of minerals perhaps required for the origin of life and certainly later modified by the presence of life.

4. We investigate the geochemical steps that may have lead to the origin of life, focusing on identifying and characterizing mineral catalyzed organic reaction networks that lead from simple volatiles, e.g., CO₂, NH₃, and H₂, up to greater molecular complexity. We explore the role of minerals to enhance molecular selection, both isomeric and chiral selection, as well as molecular organization on mineral surfaces.

5. We study the intersection between geology and biology. We continue to explore how sub-seafloor interactions support deep ocean hydrothermal ecosystems. We study life’s adaption to extremes of pressure, cold, and salinity. We adapt and apply multiple isotopic sulfur geochemistry towards the understanding of microbial metabolism and as a means of detecting ancient metabolisms recorded in the rock record through characteristic sulfur isotopic signatures. We apply state-of-the-art methods to derive chemical and isotopic biosignatures of life in the Earth’s most ancient rocks.

Fuller understanding of life’s origin, evolution, and distribution requires major advances on all these topics, as well as the extensive challenge of integrating these topics. During the next three years of NAI support we anticipate significant progress in each of these six areas, as well as considerable advances derived from integrating these theoretical, experimental, and field studies.

Highlights in the area of Studies of the Physical and chemical evolution of planetary systems during the past year (2011-2012) include the following:

*Co-I Butler continued his work on radial velocity searches for exoplanets in the Lick-Carnegie survey, Anglo-Australian Planet Search, and Magellan Planet Finding survey. He expects to soon bring on line the dedicated 2.4 m Automated Planet Finder telescope. The goal is to find the smallest mass planets, and potentially habitable mass planets, around the nearest stars.

*NAI-supported postdoctoral researcher Guillem Anglada-Escudé developed a new algorithm for obtaining precision radial velocities from the HARPS instrument operated by the European Southern Observatory. This method, named “Template-Enhanced Radial velocity Re-analysis Application” or TERRA provides significant improvement in low amplitude signal detection, especially around M-type stars.

*Co-I Boss leads the Carnegie Astrometric Planet Search (CAPS) project at LCO, while Co-I Weinberger and NAI supported postdoctoral researcher Anglada-Escudé are key members of the CAPS team. The CAPS team is undertaking an astrometric search for gas giant planets and brown dwarfs orbiting nearby low mass dwarf stars with the LCO du Pont telescope. We are following 100 nearby (primarily within about 15 pc) low mass stars, principally late M, L, and T dwarfs, for 10 years or more. Our latest paper (Anglada-Escudé et al. 2012) places an astrometric upper mass limit on the known Doppler exoplanet GJ 317b.

*Co-I Boss is also working on mixing and transport in marginally gravitationally unstable disks. Along with Co-I Conel Alexander, Boss and and collaborator Podolak published a paper in EPSL in 2012 that describes 3D hydrodynamical models of the trajectories of particles in the solar nebula that show that cm-sized particles can traverse distances of 10 AU or more, both inward and outward, in the midplane of the nebula, in less than 1000 yrs.

*NAI-supported postdoctoral researcher Nick Moskovitz and collaborators have focused on obtaining multi-wavelength observations of near-Earth asteroids during very close approaches to the Earth. Such observations are challenging due to the rapid motion of the asteroids and the specific timing requirements, the proximity of the targets, and thus their apparent brightness during these events.

*The star TW Hydrae sports a massive disk. Because it is the nearest example of a protoplanetary disk, Co-I Weinberger has used HST data to study its structure and composition. Weinberger and collaborators have determined parallaxes to fourteen primary stars identified as TWA members, to greatly expanded the knowledge of the kinematics of these young stars.

Highlights in the area of Studies of the Origin and Evolution of Organic matter in the Solar System during the past year (2011-2012) include the following:

*Co-I Scott Sheppard and collaborators have measured the optical colors of 58 outer Solar System objects in mean motion resonance with Neptune. They find that the various Neptune resonant populations have significantly different surface color distributions. This indicates vastly different origins and evolutions for the objects in resonance with Neptune, with implications for the origins of volatiles in the inner and outer solar system.

*Co-Is Nittler, Alexander, Stroud, and Cody have continued their coordinated multi-technique microanalytical studies of meteoritic organic matter, both in situ and as isolated insoluble organic matter (IOM) residues. This year, we have extended this research to several more micron-sized C inclusions in this meteorite and CR2 GRA 95229. They find that an original ¹⁵N- and nitrile-enriched material may have been preferentially protected against parent-body processing in larger carbonaceous inclusions.

*Coordinated micro-analysis of carbonaceous nano-globules reveals a range of textures and chemically distinct classes of material, suggesting a complex history of organic synthesis early in Solar System history.

*This year the CIW-NAI team began a new collaboration with Sachiko Amari at Washington University to investigate the structure of carbonaceous residues from the Saratov (L4) ordinary chondrite. Electron microscopy studies of the Saratov residues carried out by Stroud demonstrate that only phase of carbon present in these residues in porous nanoscale graphene, similar to activated carbon.

*Co-Is Alexander, Fogel and Nittler show that the D/H ratios of water in carbonaceous chondrites are lower than those in comets and Enceladus, implying that the chondrites formed in a different region of the Solar System, probably much closer to the Sun, contrary to the predictions of recent dynamical models. The D/H ratios of water in carbonaceous chondrites also argue against an influx of water ice from the outer Solar System that has been invoked to explain the non-solar oxygen isotopic composition of the inner Solar System. Finally, we argued that the bulk H and N isotopic compositions of CI chondrites suggest that they were the principal source of the Earth’s volatiles.

*Co-Is Cody, Alexander and Fogel along with Post Doctoral Fellows Wang and Kebukawa have measured large intramolecular D/H fractionation in chondritic organic solids using Solid State Nuclear Magnetic Resonance (NMR) spectroscopy. These measurements may place significant constraint on the origin and evolution of the D/H of solar system water.

Highlights in the area of Studies of the Origin, evolution, and volatile inventories of terrestrial planets during the past year (2011-2012) include the following:

*CoI Chambers has examined the role of giant impacts in the final stage of planetary accretion. This stage begins with tens or hundreds of lunar-to-Mars-sized planetary embryos and ends with a handful of rocky planets that move on stable orbits. These new simulations show that nearly half of collisions are of the hit and run kind, with no net growth. However, the timescale required for an Earth-like planet to acquire most of its mass is essentially unchanged. Collision rates are higher as a result.

*Co-I Solomon is the Principal Investigator and Co-I Nittler the Deputy Principal Investigator of the MESSENGER mission to Mercury. As part of this NAI project, Solomon and Nittler are integrating the information derived from MESSENGER into a better understanding of the processes that led to the formation of the small, embryo-sized inner planets, including Mercury at about 5% of Earth’s mass and Mars at about 10%. That the bulk compositions, volatile abundances, magmatic histories, and magnetic field histories differ so strongly on these two bodies demonstrates the strongly stochastic nature of the planet-building process and probably some dependence on solar distance.

*CoI’s Mysen and Fogel working with collaborator Foustoukos have studied in-situ the behavior of silicate-saturated fluids coexisting with fluid-saturated silicate melts. Physicochemical behavior was determined in-situ with the materials at temperature (up to 900˚C) and pressure (up to 2250 MPa) with samples contained in an Ir-gasketed hydrothermal diamond anvil cell (HDAC).

*PI Cody with NAI Post Doc Wang and CoI Mysen have been applying D and H solid state NMR to study intramolecular isotope fractionation in silicate glasses quenched from melts. We find very large differences in the affinity of D or H in different molecular environments within the quenched melts. Such fractionation arises not due to any thermal equilibrium effects or kinetic isotope effects, but rather due to partial molar volume differences between OH and OD species.

*CoIs Steele Mysen, and Fogel and a number of collaborators have had two important papers published on reduced organic carbon compounds on Mars. In the first study they used confocal Raman imaging spectroscopy and transmission electron microscopy to study organic carbon in the Martian meteorite Allan Hills (ALH) 84001. Given that the Mars Science Laboratory mission is targeted at Gale crater, the questions raised as to the formation of reduced carbon species from ground water interactions or from impact processes should be measurable by the Sample Analysis at Mars (SAM) instrument.

*Co-I Shirey, is studying ancient surface geological processes seen on Earth’s continents through the 150 km depths of their continental lithospheric mantle keels into the convecting mantle below and back in time. Such recycling is a fundamental geodynamic process that has occurred on Earth in some form since it accreted. Shirey has been investigating the implications of a geodynamic shift for the composition, structure and heat budget of the earliest Earth and how continental crust is constructed during the transition to more traditional plate tectonics.

*CoI Hazen is studying the mineralogy of the Hadean Eon, encompassing Earth’s first 700 million years, a time of significant planetary evolution. CoI Hazen and collaborators estimate that prebiotic Earth’s near-surface environment held no more than about 410 different rock-forming or accessory mineral species that were widely distributed and/or volumetrically significant. This Hadean mineralogical parsimony, perhaps comparable to the mineral diversity of the near-surface environment of Mars today, is a consequence of the relatively limited modes of mineral paragenesis prior to 3.85 Ga compared to the last 3.0 billion years.

Highlights in the area of Studies of the Geochemical steps leading to the origins of life during the past year (2011-2012) include the following:

*Former NAI PD fellow Shohei Ohara working with PI Cody continued their studies of organic-mineral interactions. They find that in reactions involving citric acid and FeS considerable dissolution of FeS occurs at near ambient temperatures; the iron-citrate clusters spontaneously react to form pyruvate through an iron catalyzed retro-aldol reaction.

*NAI PD fellow Codi Lazar working PI Cody and collaborator Craig Manning (UCLA) completed their work on pressure catalyzed methanogenesis. In this set of experiments it is found that in the absence of catalysts, increased pressure strongly increases the rate of methane formation from CO₂ and H₂.

*NAI PD Klotchko and CoI’s Hazen and Sverjenky have studied interactions of pentose sugars on rutile (a-TiO₂, pH_PPZC = 5.4, BET = 18.1 m²/g) in pure water, 10 and 100 mM NaCl and synthetic seawater solutions with 5 < pH < 10. Batch adsorption experiments of the four sugars individually and in mixtures indicate that adsorption increases with increasing pH and salt concentration of the solution. The salt effect and pH dependancy of adsorption is more pronounced for ribose. Ribose adsorption is the strongest among the sugars, suggesting that ribose’s cis diol OH-groups play a critical role in the attachment to mineral surfaces.

*NAI supported pre Doc Lee and NAI colleagues have conducted in situ SERS measurements to probe the attachment configurations of the organic molecule DOPA on nano-rutile at different pH values. The SERS spectra show signals that progressively change between pH values of 3 to 6 (Figure 4), indicating a change from the “lying down” to “standing up”, thereby validating the model predictions of two different surface complexes.

*Predoctoral student Lee and NAI colleagues performed hydrothermal experiments to investigate the influence of redox conditions on the stability of glutamic acid at pressures and temperatures reflecting near-seafloor hydrothermal environments (100–250 oC, 136 bar). It is found that the decomposition of glutamic acid is strongly inhibited by the redox state imposed by a dissolved H₂.

Highlights in the area of Studies of Geobiological-Biological Interactions during the past year (2011-2012) include the following:

*CoI Schrenk and colleagues expanded their study of the sub-surface environments associated with hydrothermal vents, to include viruses so as to assess their possible role in effecting the genetic landscape of the microbial communities. They find that viruses are likely to play a crucial role in facilitating adaptability to the extreme conditions of these regions of the deep biosphere.

*CoI Baross and students have completed analyses of the microbial community structure in hydrothermal fluid gradients associated with diffuse-flow vents and vent plumes. Surprisingly, a high incidence of a single species of sulfur metabolizing bacteria was found in the plume samples. These sulfur-oxidizing species are cosmopolitan and are frequently seen in oxygen minimum zones.

*Collaborators Glamoclija, Rogers, and Bowden, working with CoIs Fogel, and Steele have started a new exciting project studying carbon cycling related to volcanic processes at the Campi Felgrei Deep Drilling Site, Southern Italy.

*NAI post Doc Pérez-Rodríguez working with collaborator and mentor Foustoukos participated in a multi-institutional/international/interdisciplinary project in collaboration with Stefan Sievert (WHOI), Costantino Vetriani (Rutgers), and Nadine Le Bris (CNRS) to study shallow water vent systems in Palaeochori Bay off Milos (Greece). Currently, they are characterizing the chemical and isotopic signatures of specific microbial community composition at these sites and performing culture-dependent studies to constrain chemolithoautotrophic dissimilatory Fe(III) reduction metabolism from microorganisms belonging to these communities.

*CoI Farquhar and students have continued to use the multiple isotopic systematics of sulfur to better undertand microbial sulfur metabolism. This very large project involves six members of the Farquhar group.

*NAI post Doc Pérez-Rodríguez with collaborators Foustoukos and Sievert (Woods Hole) and CoI Fogel are studying experimentally nitrogen metabolisms of deep-sea vent chemosynthetic microbes at in situ seafloor pressures. These data will help to improve the understanding of nitrogen metabolism in anaerobic chemosynthetic nitrate reducing microorganisms at deep-sea hydrothermal vents.

*Former NAI Post Doc Wang and CoI’s Cody, Fogel and Steele have developed a novel approach towards following hydrogen isotope fractionation in bacteria during exponential growth using a combination of D and H solid state NMR and structural mass spectrometry. They find that that membrane lipids are enriched in deuterium over protein aminoacids by 600 permil.

Publications

Albrecht, S., Winn, J. N., Butler, R. P., Crane, J. D., Shectman, S. A., Thompson, I. B., … Wittenmyer, R. A. (2011). A HIGH STELLAR OBLIQUITY IN THE WASP-7 EXOPLANETARY SYSTEM. The Astrophysical Journal, 744(2), 189. doi:10.1088/0004-637x/744/2/189
Albrecht, S., Winn, J. N., Johnson, J. A., Howard, A. W., Marcy, G. W., Butler, R. P., … Hartman, J. D. (2012). OBLIQUITIES OF HOT JUPITER HOST STARS: EVIDENCE FOR TIDAL INTERACTIONS AND PRIMORDIAL MISALIGNMENTS. The Astrophysical Journal, 757(1), 18. doi:10.1088/0004-637x/757/1/18
Albrecht, S., Winn, J. N., Johnson, J. A., Paul Butler, R., Crane, J. D., Shectman, S. A., … Fischer, D. (2011). TWO UPPER LIMITS ON THE ROSSITER-MCLAUGHLIN EFFECT, WITH DIFFERING IMPLICATIONS: WASP-1 HAS A HIGH OBLIQUITY AND WASP-2 IS INDETERMINATE. The Astrophysical Journal, 738(1), 50. doi:10.1088/0004-637x/738/1/50
Alexander, C. M. O., Bowden, R., Fogel, M. L., Howard, K. T., Herd, C. D. K., & Nittler, L. R. (2012). The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets. Science, 337(6095), 721–723. doi:10.1126/science.1223474
Anderson, B. J., Johnson, C. L., Korth, H., Purucker, M. E., Winslow, R. M., Slavin, J. A., … Zurbuchen, T. H. (2011). The Global Magnetic Field of Mercury from MESSENGER Orbital Observations. Science, 333(6051), 1859–1862. doi:10.1126/science.1211001
Anderson, R. E., Beltrán, M. T., Hallam, S. J., & Baross, J. A. (2012). Microbial community structure across fluid gradients in the Juan de Fuca Ridge hydrothermal system. FEMS Microbiology Ecology, 83(2), 324–339. doi:10.1111/j.1574-6941.2012.01478.x
Anderson, R. E., Brazelton, W. J., & Baross, J. A. (2011). Is the Genetic Landscape of the Deep Subsurface Biosphere Affected by Viruses?. Frontiers in Microbiology, 2. doi:10.3389/fmicb.2011.00219
Anderson, R. E., Brazelton, W. J., & Baross, J. A. (2013). The Deep Viriosphere: Assessing the Viral Impact on Microbial Community Dynamics in the Deep Subsurface. Reviews in Mineralogy and Geochemistry, 75(1), 649–675. doi:10.2138/rmg.2013.75.20
Anglada-Escudé, G., & Paul Butler, R. (2012). THE HARPS-TERRA PROJECT. I. DESCRIPTION OF THE ALGORITHMS, PERFORMANCE, AND NEW MEASUREMENTS ON A FEW REMARKABLE STARS OBSERVED BY HARPS. The Astrophysical Journal Supplement Series, 200(2), 15. doi:10.1088/0067-0049/200/2/15
Anglada-Escudé, G., Arriagada, P., Vogt, S. S., Rivera, E. J., Butler, R. P., Crane, J. D., … Jenkins, J. S. (2012). A PLANETARY SYSTEM AROUND THE NEARBY M DWARF GJ 667C WITH AT LEAST ONE SUPER-EARTH IN ITS HABITABLE ZONE. The Astrophysical Journal, 751(1), L16. doi:10.1088/2041-8205/751/1/l16
Anglada-Escudé, G., Boss, A. P., Weinberger, A. J., Thompson, I. B., Butler, R. P., Vogt, S. S., & Rivera, E. J. (2012). ASTROMETRY AND RADIAL VELOCITIES OF THE PLANET HOST M DWARF GJ 317: NEW TRIGONOMETRIC DISTANCE, METALLICITY, AND UPPER LIMIT TO THE MASS OF GJ 317b. The Astrophysical Journal, 746(1), 37. doi:10.1088/0004-637x/746/1/37
Anglada-Escudé, G., Plavchan, P., Mills, S., Gao, P., García-Berríos, E., Lewis, N. S., … Prato, L. (2012). Design and Construction of Absorption Cells for Precision Radial Velocities in the K Band Using Methane Isotopologues. Publications of the Astronomical Society of the Pacific, 124(916), 586–597. doi:10.1086/666489
Bahri, S., Jonsson, C. M., Jonsson, C. L., Azzolini, D., Sverjensky, D. A., & Hazen, R. M. (2011). Adsorption and Surface Complexation Study of L-DOPA on Rutile (α-TiO 2 ) in NaCl Solutions. Environ. Sci. Technol., 45(9), 3959–3966. doi:10.1021/es1042832
Baker, D. M. H., Head, J. W., Schon, S. C., Ernst, C. M., Prockter, L. M., Murchie, S. L., … Strom, R. G. (2011). The transition from complex crater to peak-ring basin on Mercury: New observations from MESSENGER flyby data and constraints on basin formation models. Planetary and Space Science, 59(15), 1932–1948. doi:10.1016/j.pss.2011.05.010
Blewett, D. T., Chabot, N. L., Denevi, B. W., Ernst, C. M., Head, J. W., Izenberg, N. R., … Hurwitz, D. M. (2011). Hollows on Mercury: MESSENGER Evidence for Geologically Recent Volatile-Related Activity. Science, 333(6051), 1856–1859. doi:10.1126/science.1211681
Borucki, W. J., Koch, D. G., Batalha, N., Bryson, S. T., Rowe, J., Fressin, F., … Rapin, W. (2012). Kepler-22b: A 2.4 EARTH-RADIUS PLANET IN THE HABITABLE ZONE OF A SUN-LIKE STAR. The Astrophysical Journal, 745(2), 120. doi:10.1088/0004-637x/745/2/120
Boss, A. P. (2011). EVOLUTION OF THE SOLAR NEBULA. IX. GRADIENTS IN THE SPATIAL HETEROGENEITY OF THE SHORT-LIVED RADIOISOTOPES 60 Fe AND 26 Al AND THE STABLE OXYGEN ISOTOPES. The Astrophysical Journal, 739(2), 61. doi:10.1088/0004-637x/739/2/61
Boss, A. P. (2011). Giant planet formation by disc instability: flux-limited radiative diffusion and protostellar wobbles. Monthly Notices of the Royal Astronomical Society, 419(3), 1930–1936. doi:10.1111/j.1365-2966.2011.19858.x
Boss, A. P. (2012). Mixing and Transport of Isotopic Heterogeneity in the Early Solar System. Annual Review of Earth and Planetary Sciences, 40(1), 23–43. doi:10.1146/annurev-earth-042711-105552
Boss, A. P., & Keiser, S. A. (2012). SUPERNOVA-TRIGGERED MOLECULAR CLOUD CORE COLLAPSE AND THE RAYLEIGH-TAYLOR FINGERS THAT POLLUTED THE SOLAR NEBULA. The Astrophysical Journal, 756(1), L9. doi:10.1088/2041-8205/756/1/l9
Boss, A. P., Alexander, C. M. O. D., & Podolak, M. (2012). Cosmochemical consequences of particle trajectories during FU Orionis outbursts by the early Sun. Earth and Planetary Science Letters, 345-348, 18–26. doi:10.1016/j.epsl.2012.06.046
Boss, A., Lecavelier Des Etangs, A., Mayor, M., Bodenheimer, P., Collier-Cameron, A., Kokubo, E., … Queloz, D. (2011). COMMISSION 53: EXTRASOLAR PLANETS. Proceedings of the International Astronomical Union, 7(T28A), 138–140. doi:10.1017/s1743921312002712
Brazelton, W. J., Mehta, M. P., Kelley, D. S., & Baross, J. A. (2011). Physiological Differentiation within a Single-Species Biofilm Fueled by Serpentinization. mBio, 2(4), e00127–11–e00127–11. doi:10.1128/mbio.00127-11
Brazelton, W. J., Nelson, B., & Schrenk, M. O. (2012). Metagenomic Evidence for H2 Oxidation and H2 Production by Serpentinite-Hosted Subsurface Microbial Communities. Frontiers in Microbiology, 2. doi:10.3389/fmicb.2011.00268
Chabot, N. L., Ernst, C. M., Denevi, B. W., Harmon, J. K., Murchie, S. L., Blewett, D. T., … Zhong, E. D. (2012). Areas of permanent shadow in Mercury’s south polar region ascertained by MESSENGER orbital imaging. Geophysical Research Letters, 39(9), n/a–n/a. doi:10.1029/2012gl051526
Chen, C. H., Mamajek, E. E., Bitner, M. A., Pecaut, M., Su, K. Y. L., & Weinberger, A. J. (2011). A MAGELLAN MIKE AND SPITZER MIPS STUDY OF 1.5-1.0 M ☉ STARS IN SCORPIUS-CENTAURUS. The Astrophysical Journal, 738(2), 122. doi:10.1088/0004-637x/738/2/122
Cody, G. D., Heying, E., Alexander, C. M. O., Nittler, L. R., Kilcoyne, A. L. D., Sandford, S. A., & Stroud, R. M. (2011). Establishing a molecular relationship between chondritic and cometary organic solids. Proceedings of the National Academy of Sciences, 108(48), 19171–19176. doi:10.1073/pnas.1015913108
De GREGORIO, B. T., Stroud, R. M., Cody, G. D., Nittler, L. R., David Kilcoyne, A. L., & Wirick, S. (2011). Correlated microanalysis of cometary organic grains returned by Stardust. Meteoritics & Planetary Science, 46(9), 1376–1396. doi:10.1111/j.1945-5100.2011.01237.x
Debes, J. H., Kilic, M., Faedi, F., Shkolnik, E. L., Lopez-Morales, M., Weinberger, A. J., … West, R. G. (2012). DETECTION OF WEAK CIRCUMSTELLAR GAS AROUND THE DAZ WHITE DWARF WD 1124-293: EVIDENCE FOR THE ACCRETION OF MULTIPLE ASTEROIDS. The Astrophysical Journal, 754(1), 59. doi:10.1088/0004-637x/754/1/59
Desch, S. J., Morris, M. A., Connolly, H. C., & Boss, A. P. (2012). The importance of experiments: Constraints on chondrule formation models. Meteoritics & Planetary Science, 47(7), 1139–1156. doi:10.1111/j.1945-5100.2012.01357.x
Evans, L. G., Peplowski, P. N., Rhodes, E. A., Lawrence, D. J., McCoy, T. J., Nittler, L. R., … Goldsten, J. O. (2012). Major-element abundances on the surface of Mercury: Results from the MESSENGER Gamma-Ray Spectrometer. Journal of Geophysical Research: Planets, 117(E12), n/a–n/a. doi:10.1029/2012je004178
Fassett, C. I., Head, J. W., Baker, D. M. H., Zuber, M. T., Smith, D. E., Neumann, G. A., … Preusker, F. (2012). Large impact basins on Mercury: Global distribution, characteristics, and modification history from MESSENGER orbital data. Journal of Geophysical Research: Planets, 117(E12), n/a–n/a. doi:10.1029/2012je004154
Fekel, F. C., Cordero, M. J., Galicher, R., Zuckerman, B., Melis, C., & Weinberger, A. J. (2012). THIRD COMPONENT SEARCH AND ABUNDANCES OF THE VERY DUSTY SHORT-PERIOD BINARY BD +20°307. The Astrophysical Journal, 749(1), 7. doi:10.1088/0004-637x/749/1/7
Foustoukos, D. I. (2012). Metastable equilibrium in the C-H-O system: Graphite deposition in crustal fluids. American Mineralogist, 97(8-9), 1373–1380. doi:10.2138/am.2012.4086
Foustoukos, D. I., & Mysen, B. O. (2012). D/H fractionation in the H2–H2O system at supercritical water conditions: Compositional and hydrogen bonding effects. Geochimica et Cosmochimica Acta, 86, 88–102. doi:10.1016/j.gca.2012.03.003
Foustoukos, D. I., & Mysen, B. O. (2013). H/D methane isotopologues dissolved in magmatic fluids: Stable hydrogen isotope fractionations in the Earth’s interior. American Mineralogist, 98(5-6), 946–954. doi:10.2138/am.2013.4419
Freed, A. M., Blair, D. M., Watters, T. R., Klimczak, C., Byrne, P. K., Solomon, S. C., … Melosh, H. J. (2012). On the origin of graben and ridges within and near volcanically buried craters and basins in Mercury’s northern plains. Journal of Geophysical Research: Planets, 117(E12), n/a–n/a. doi:10.1029/2012je004119
Glamoclija, M., Fogel, M. L., Steele, A., & Kish, A. (2012). Microbial Nitrogen and Sulfur Cycles at the Gypsum Dunes of White Sands National Monument, New Mexico. Geomicrobiology Journal, 29(8), 733–751. doi:10.1080/01490451.2011.608111
Goldman, A. D., Baross, J. A., & Samudrala, R. (2012). The Enzymatic and Metabolic Capabilities of Early Life. PLoS ONE, 7(9), e39912. doi:10.1371/journal.pone.0039912
Goncharov, A. F. (2012). Raman Spectroscopy at High Pressures. International Journal of Spectroscopy, 2012, 1–16. doi:10.1155/2012/617528
Grew, E. S., Bada, J. L., & Hazen, R. M. (2011). Borate Minerals and Origin of the RNA World. Orig Life Evol Biosph, 41(4), 307–316. doi:10.1007/s11084-010-9233-y
Guy, B. M., Ono, S., Gutzmer, J., Kaufman, A. J., Lin, Y., Fogel, M. L., & Beukes, N. J. (2012). A multiple sulfur and organic carbon isotope record from non-conglomeratic sedimentary rocks of the Mesoarchean Witwatersrand Supergroup, South Africa. Precambrian Research, 216-219, 208–231. doi:10.1016/j.precamres.2012.06.018
Haghighipour, N., Butler, R. P., Rivera, E. J., Henry, G. W., & Vogt, S. S. (2012). THE LICK-CARNEGIE SURVEY: A NEW TWO-PLANET SYSTEM AROUND THE STAR HD 207832. The Astrophysical Journal, 756(1), 91. doi:10.1088/0004-637x/756/1/91
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Blair, D.M., Freed, A.M., Byrne, P.K., Klimczak, C., Solomon, S.C., Watters, T.R., Prockter, L.M., Melosh, H.J. & Zuber, M.T. (2012). Thermally induced graben in peak-ring basins and ghost craters on Mercury. Lunar Planet. Sci., 43, abstract 2501.
Blair, D.M., Freed, A.M., Melosh, H.J., Solomon, S.C., Prockter, L.M., Watters, T.R. & Zuber, M.T. (2011). Graben on the floors of Mercury’s medium-sized impact basins: Extension from cooling. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1595.
Blewett, D.T., Chabot, N.L., Denevi, B.W., Ernst, C.M., Izenberg, N.R., Xiao, Z., Baker, D.M.H., Braden, S.E., Head, J.W. & Murchie, S.L. (2011). MESSENGER views of unusual bright-haloed depressions on Mercury: Possible recent volatile-related activity. Abstracts with Programs, 43 (5), paper 100-5, p. 266, Geological Society of America, Boulder, Colo. (CD-ROM).
Blewett, D.T., Chabot, N.L., Denevi, B.W., Ernst, C.M., Murchie, S.L., Izenberg, N.R., Xiao, Z., Vaughan, W.M. & Head, J.W. (2012). Spectral and morphological studies of Mercury’s hollows. Lunar Planet. Sci., 43, abstract 1329.
Blewett, D.T., Fontanella, N.R., Peel, S.E., Zhong, E.D., Pashai, P., Chabot, N.L., Denevi, B.W., Ernst, C.M., Izenberg, N.R., Murchie, S.L., Xiao, Z., Braden, S.E., Baker, D.M.H., Hurwitz, D.M., Head, J.W., McCoy, T.J., Nittler, L.R. & Solomon, S.C. (2011). Hollows on Mercury: Bright-haloed depressions imply recent endogenic activity. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43E-07.
Boss, A.P. (2011). Injection and Homogenization of Short-Lived Radionuclides in the Solar System. LPI Contributions, 1639: 9003.
Boss, A.P., Alexander, C.M.O.D., Podolak, M. & Ebel, D.S. (2012). Particle Trajectories During FU Orionis Outbursts by the Protosun [Abstract]. Lunar and Planetary Institute Science Conference.
Boss, A.P., Hudgins, D.M., Traub, W.A. & Lattanzi, M.G. (2011). New Worlds, New Horizons and NASA’s approach to the next decade of exoplanet discoveries. IAU Symposium, 276: 324-334.
Bower, D.M., Hummer, D.R., Kyono, A. & Steele, A. The co-evolution of Fe-, Ti-oxides and microbial fossilization during early diagenesis in sandy sediments: establishing potential mineral biosignatures. Geological Society of America Annual Meeting 2011, Minneapolis, MN, # 129-5.
Bower, D.M., Hummer, D.R., Kyono, A., Steele, A. & Armstrong, J. The co-evolution of Fe-, Ti-oxides and other microbially induced mineral precipitates in sandy sediments: understanding the role of microbes in diagenesis. American Geophysical Union Annual Meeting, 2011, San Francisco, CA., #B511-0522.
Bower, D.M., Steele, A., Fries, M.D. & Kater, L. A micro Raman spectroscopy investigation of carbonaceous material in geologic samples for life detection: unraveling the mysteries of G-and D- band parameters. AbSciCon 2012, Atlanta, Georgia, #1045.
Bower, D.M., Steele, A., Fries, M.D. & Kater, L. Micro Raman spectroscopic investigations of carbonaceous material in microfossils and meteorites: improving the use of G- and D-band parameters for life detection. Astrobiology.
Braden, S.E., Denevi, B.W., Robinson, M.S., Blewett, D.T. & Solomon, S.C. (2011). Reflectance of immature materials on Mercury and the Moon. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1585.
Braden, S.E., Robinson, M.S., Denevi, B.W. & Solomon, S.C. (2011). Reflectance of Mercury and the Moon. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-1737.
Braden, S.E., Robinson, M.S., Denevi, B.W. & Solomon, S.C. (2012). Immature craters mature faster on Mercury than on the Moon. Lunar Planet. Sci., 43, abstract 2872.
Brazelton, W., Nelson, B., Szponar, N., Morrill, P.L. & Schrenk, M.O. (2011). Metagenomic evidence for subsurface microbial activity fueled by serpentinization. Astrobiology Science Conference, Atlanta, Georgia.
Brazelton, W.J. & Schrenk, M.O. (2012). Metagenome-enabled investigations of carbon and hydrogen fluxes within the serpentinite-hosted subsurface biosphere. JGI User Meeting.
Brazelton, W.J., Nelson, B. & Schrenk, M.O. (2011). Investigating the Potential for Subsurface Primary Production Fueled by Serpentinization. Abstract B44B-02 presented at 2011 Fall Meeting, AGU, San Francisco, CA,.
Brazelton, W.J., Twing, K.I. & Schrenk, M.O. (2012). Microbial Biogeography of serpentinization-hosted ecosystems. Gordon Research Conference on Marine Microbial Genomics, Lucca, Italy.
Buie, M.W., Spencer, J.R., Parker, A.H., Stern, S.A., Holman, M.J., Tholen, D.J., Borncamp, D., Trilling, D.E., Osip, D.J., Gay, P.L., Fuentes, C., Kavelaars, J.J., Petit, J.M., Fabbro, S., Benecchi, S.D., Sheppard, S.S., DeMeo, F., Binzel, R.P., Wasserman, L.H., Steffl, A.J., Fuse, T., Karoji, H., Kinoshita, D., Yanagisawa, T., Miyazaki, S., Furusawa, H., Yoshida, F., Yamashida, T. & Tajitsu, A. (2012). Searching for KBO Flyby Targets for the New Horizons Mission. LPI Contributions, 1667: 6430.
Byrne, P.K., Klimczak, C., Denevi, B.W., Solomon, S.C., Nittler, L.R., Watters, T.R., Enns, A.C., Head, J.W., Hurwitz, D.M. & Baker, D.M.H. (2011). Analysis of surface volcanism on Mercury. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1590.
Byrne, P.K., Klimczak, C., Denevi, B.W., Watters, T.R., Solomon, S.C., Enns, A., Head, J.W., Hurwitz, D.M. & Baker, D.M.H. (2011). Surface lava flow features on Mercury. Abstracts with Programs, 43 (5), paper 142-7, p. 358, Geological Society of America, Boulder, Colo. (CD-ROM).
Byrne, P.K., Sengör, A.M.C., Klimczak, C., Solomon, S.C. & Watters, T.R. (2012). Large-scale crustal deformation on Mercury. Lunar Planet. Sci., 43, abstract 2118.
Byrne, P.K., Watters, T.R., Murchie, S.L., Klimczak, C., Solomon, S.C., Prockter, L.M. & Freed, A.M. (2012). A tectonic survey of the Caloris basin, Mercury. Lunar Planet. Sci., 43, abstract 1722.
Cardace, D., Carnevale, D., Hoehler, T., McCollom, T. & Schrenk, M. (2011). Active Serpentinization in the Coast Range Ophiolite: Intersections of Petrography, Geochemistry, and Bioenergetics [poster]. Astrobiology Science Conference, Atlanta, Georgia.
Chabot, N.L., Blewett, D.T., Denevi, B.W., Ernst, C.M. & Murchie, S.L. (2011). Illumination conditions near Mercury’s south pole. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-273.
Chabot, N.L., Ernst, C.M., Harmon, J.K., Murchie, S.L., Solomon, S.C., Blewett, D.T. & Denevi, B.W. (2012). Craters hosting radar-bright deposits in Mercury’s north polar region. Lunar Planet. Sci., 43, abstract 1476.
Chambers, J.E. (2012). Late Stage Planet Formation with Realistic Collisions. AAS Division of Planetary Scieinces, Reno NV.
Changela, H.G., Stroud, R.M., De Gregorio, B.T., Nittler, L.R. & Alexander, C.M.O.D. (2011). Nanoglobule abundances in IOM extracts: correlation with parent body processing. Meteoritics & Planetary Science (Supp.), Abstract #5504.
Chapman, C.R., Merline, W.J., Marchi, S., Prockter, L.M., Fassett, C.I., Head, J.W., Solomon, S.C. & Xiao, Z. (2012). The young inner plains of Mercury’s Rachmaninoff basin reconsidered. Lunar Planet. Sci., 43, abstract 1607.
Chapman, C.R., Merline, W.J., Ostrach, L.R., Xiao, Z., Solomon, S.C. & Head, J.W. (2011). Small craters (secondaries) on Mercury’s northern plains. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-1497.
Chapman, C.R., Merline, W.J., Ostrach, L.R., Xiao, Z., Solomon, S.C., Head, J.W. & Whitten, J.L. (2011). Statistics of morphologies of small primary and secondary craters on Mercury’s northern plains. Abstracts with Programs, 43 (5), paper 142-13, p. 359, Geological Society of America, Boulder, Colo. (CD-ROM).
Chen, C., Mamajek, E.E., Bitner, M.A., Pecaut, M., Su, K.Y.L. & Weinberger, A.J. (2011). A Spitzer Study of Dusty Disks in the Scorpius-Centaurus OB Association [Abstract]. AAS/Division for Extreme Solar Systems Abstracts.
Chowdhury, S., Brazelton, W. & Schrenk, M. (2011). Metabolic Capabilities of Microbial Communities in the Serpentinite Subsurface Biosphere [poster]. Astrobiology Science Conference, Atlanta, Georgia.
Denevi, B.W., Robinson, M.S., Blewett, D.T., Murchie, S.L., Chabot, N.L., Ernst, C.M., Solomon, S.C. & Head, J.W. (2011). Origin and significance of plains on Mercur. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-948.
Denevi, B.W., Robinson, M.S., Murchie, S.L., Barnouin, O.S., Blewett, D.T., Chabot, N.L., Ernst, C.M., Head, J.W., Ostrach, L.R., Solomon, S.C. & Watters, T.R. (2011). The role of plains volcanism in the formation of Mercury’s crust. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43E-09.
Dickson, J.L., Head, J.W., Whitten, J.L., Fassett, C.I., Neumann, G.A., Smith, D.E., Zuber, M.T. & Phillips, R.J. (2012). Topographic rise in the northern smooth plains of Mercury: Characteristics from MESSENGER image and altimetry data and candidate modes of origin. Lunar Planet. Sci., 43, abstract 2249.
D’Amore, M., Helbert, J., Maturilli, A., Head, J.W., Sprague, A.L., Izenberg, N.R., Holsclaw, G.M., McClintock, W.E., Vilas, F. & Solomon, S.C. (2012). Global classification of MESSENGER spectral reflectance data and a detailed look at Rudaki plains. Lunar Planet. Sci., 43, abstract 1413.
D’Amore, M., Helbert, J., Maturilli, A., Sprague, A.L., Izenberg, N.R., Holsclaw, G.M., McClintock, W.E., Vilas, F. & Solomon, S.C. (2011). Surface compositional heterogeneity on Mercury inferred from MESSENGER spectral measurements. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-817.
D’Incecco, P., Head, J.W., D’Amore, M., Maturilli, A., Izenberg, N.R., Holsclaw, G.M., Domingue, D.L., McClintock, W.E. & Solomon, S.C. (2012). Kuiper crater on Mercury – An opportunity to study recent surface weathering trends with MESSENGER. Lunar Planet. Sci., 43, abstract 1815.
Ebel, D.S., Alexander, C.M.O.D., Hauck, S.A., Lawrence, D.J., Nittler, L.R., Peplowski, P.N., Solomon, S.C., Sprague, A.L., Starr, R.D. & Stewart, S.T. (2011). MESSENGER: Implications for Mercury formation hypotheses. Abstracts with Programs, 43 (5), paper 142-5, p. 358, Geological Society of America, Boulder, Colo. (CD-ROM).
Edmundson, K.L., Weller, L.A., Becker, K.J., Becker, T.L., Rosiek, M.R., Robinson, M.S. & Solomon, S.C. (2011). Preliminary photogrammetric control of MESSENGER orbital images of Mercury. Abstracts with Programs, 43 (5), paper 100-6, p. 267, Geological Society of America, Boulder, Colo. (CD-ROM).
Eldridge, D., Sang-Tae, K. & Farquhar, J. (2012). Multiple Sulfur Isotope Effects During Sulfite and Bisulfite Oxidation in Aqueous Solution. V.M. Goldschmidt Conference, Montreal Canada.
Elgner, S., Oberst, J., Perry, M.E., Zuber, M.T., Robinson, M.S. & Solomon, S.C. (2012). Analysis of Mercury limb profiles from MESSENGER images: Results from least-squares adjustments of crossover heights. Lunar Planet. Sci., 43, abstract 1469.
Emery, J.P., Lim, L.F. & Moskovitz, N.A. (2012). The Near-Earth Encounter of 2005 YU55: Thermal inertia and inferred surface properties. LPI Contributions, 1667: 6453.
Ernst, C.M., Murchie, S.L., Barnouin, O.S., Chabot, N.L., Denevi, B.W., Head, J.W., Klimczak, C., Prockter, L.M., Solomon, S.C. & Watters, T.R. (2011). Assessing the crustal stratigraphy of Mercury: Results from MESSENGER orbital observations. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43E-08.
Ernst, C.M., Murchie, S.L., Barnouin, O.S., Chabot, N.L., Head, J.W., Prockter, L.M., Solomon, S.C. & Watters, T.R. (2001). Thickness of volcanic fill in impact basins on Mercury. Abstracts with Programs, 43 (5), paper 142-8, p. 358, Geological Society of America, Boulder, Colo., 2011 (CD-ROM).
Evans, L.G., Peplowski, P.N., Hauck, S.A., McCoy, T.J., Boynton, W.V., Ebel, D.S., Goldsten, J.O., Hamara, D.K., Lawrence, D.J., McNutt, R.L., Rhodes, E.A., Nittler, L.R., Sprague, A.L., Solomon, S.C. & Starr, R.D. (2011). MESSENGER measurements of radioactive elements on Mercury: Implications for the planet’s formation and evolution. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43E-05.
Evans, L.G., Peplowski, P.N., Hauck, S.A., McCoy, T.J., Boynton, W.V., Goldsten, J.O., Hamara, D.K., Rhodes, E.A., Sprague, A.L. & Solomon, S.C. (2011). Radioactive elements measured on Mercury by MESSENGER: Implications for the planet’s formation and evolution. Abstracts with Programs, 43 (5), paper 142-4, p. 357, Geological Society of America, Boulder, Colo. (CD-ROM).
Fassett, C.I., Denevi, B.W., Whitten, J.L., Goudge, T.A., Baker, D.M.H., Hurwitz, D.M., Ostrach, L.R., Xiao, Z., Byrne, P.K. & Klimczak, C. (2011). Widespread and voluminous volcanism in the northern lowlands of Mercury revealed by MESSENGER. Abstracts with Programs, 43 (5), paper 142-6, p. 358, Geological Society of America, Boulder, Colo. (CD-ROM).
Fassett, C.I., Dickson, J.L., Head, J.W., Hurwitz, D.M., Kadish, S.J., Mazarico, E.M., Neumann, G.A., Smith, D.E., Solomon, S.C., Strom, R.G., Whitten, J.L. & Zuber, M.T. (2011). The chronology of basin formation and subsequent volcanism on the Moon and Mercury. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P33G-03.
Fassett, C.I., Head, J.W., Baker, D.M.H., Chapman, C.R., Murchie, S.L., Neumann, G.A., Oberst, J., Prockter, L.M., Smith, D.E., Solomon, S.C., Strom, R.G., Xiao, Z. & Zuber, M.T. (2012). Distribution, statistics, and resurfacing of large impact basins on Mercury. Lunar Planet. Sci., 43, abstract 1428.
Foustoukos, D.I. & Mysen, B.O. (2012). Bonding surprise. Carnegie Institution of Washington, Year Book. Vol. 10/11. Washington DC: Carnegie Institution of Washington.
Foustoukos, D.I. & Mysen, B.O. (2012). D/H fractionation between C-H species in crustal fluids: An in-situ experimental study. ISI 2012 The Sixth International Sumposium on Isotopomers,. Washington DC.
Foustoukos, D.I. & Mysen, B.O. (2012). Hydrogen isotope fractionations between C-H-O species in magmatic fluids. AGU Fall Meeting. San Francisco.
Foustoukos, D.I. (2012). Metastable equilibrium in the C-H-O system: Graphite deposition in crustal fluids. Fourteenth Annual V. M. Goldschmidt Conference. Montreal.
Goudge, T.A., Head, J.W., Kerber, L., Blewett, D.T., Denevi, B.W., Murchie, S.L., Izenberg, N.R., McClintock, W.E., Holsclaw, G.M., Domingue, D.L., Gillis-Davis, J.J., Xiao, Z., Strom, R.G., Helbert, J. & Solomon, S.C. (2012). Global inventory and characterization of pyroclastic deposits on Mercury: New insights into pyroclastic activity from MESSENGER orbital data. Lunar Planet. Sci., 43, abstract 1325.
Gwinner, K., Head, J.W., Oberst, J., Gillis-Davis, J.J., Xiao, Z., Strom, R.G., Preusker, F. & Solomon, S.C. (2012). Morphology of pit craters on Mercury from stereo-derived topography and implications for pit crater formation. Lunar Planet. Sci., 43, abstract 1991.
Hallinan, G., Littlefair, S., Butler, R., Doyle, G., Rupen, M., Harding, L. & Golden, A. (2011). Confirming Auroral Emissions on an Ultracool Dwarf. NOAO Proposal.
Harms, B., Mitchell, K., Habicht, K., Hoek, J. & Farquhar, J. (2012). Multiple sulfur isotope model of temperature dependent isotope fractionation in Archaeoglobus fulgidus. V.M. Goldschmidt Conference, Montreal Canada.
Hauck, S.A., Solomon, S.C., Lemoine, F.G., Margot, J-L., Mazarico, E.M., Peale, S.J., Perry, M.E., Phillips, R.J., Smith, D.E. & Zuber, M.T. (2011). Internal structure of Mercury: Constraints from MESSENGER. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1580.
Hauck, S.A., Solomon, S.C., Margot, J-L., Lemoine, F.G., Mazarico, E., Peale, S.J., Perry, M.E., Phillips, R.J., Smith, D.E. & Zuber, M.T. (2012). Mercury’s internal structure as constrained by MESSENGER observations. Lunar Planet. Sci., 43, abstract 1170.
Hauck, S.A., Zuber, M.T., Smith, D.E., Johnson, C.L., Phillips, R.J., Lemoine, F.G., Margot, J-L., Neumann, G.A., Peale, S.J. & Solomon, S.C. (2011). The geophysics of Mercury: MESSENGER’s view from orbit. Abstracts with Programs, 43 (5), paper 142-2, p. 357, Geological Society of America, Boulder, Colo. (CD-ROM).
Hazen, R.M. & Papineau, D. (2012). Mineralogical Co-Evolution of the Geosphere and Biosphere [Book Chapter]. Fundamentals of Geobiology. John Wiley & Sons, Ltd.
Head, J.W., Chapman, C.R., Strom, R.G., Fassett, C.I., Denevi, B.W., Blewett, D.T., Ernst, C.M., Watters, T.R., Solomon, S.C., Murchie, S.L., Prockter, L.M., Chabot, N.L., Gillis-Davis, J.J., Whitten, J.L., Goudge, T.A., Baker, D.M.H., Hurwitz, D.M., Ostrach, L.R., Xiao, Z., Merline, W.J., Kerber, L., Dickson, J.L., Oberst, J., Byrne, P.K., Klimczak, C. & Nittler, L.R. (2011). Widespread and voluminous flood volcanism in the northern high latitudes of Mercury revealed by MESSENGER: Relation to global volcanic processes. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43A-10.
Head, J.W., Solomon, S.C., Fassett, C.I., Murchie, S.L., Prockter, L.M., Blewett, D.T., Denevi, B.W., Watters, T.R., Strom, R.G., Chapman, C.R., Gillis-Davis, J.J., Zuber, M.T., Smith, D.E., Oberst, J., Gwinner, K., Ernst, C.M., Ostrach, L.R., Byrne, P.K., Klimczak, C. & Xiao, Z. (2012). Effusive and explosive volcanism on Mercury from MESSENGER orbital observations. Geophys. Res. Abstracts, 14, abstract EGU2012-9925-3.
Head, J.W., Solomon, S.C., Fassett, C.I., Murchie, S.L., Prockter, L.M., Robinson, M.S., Blewett, D.T., Denevi, B.W., Watters, T.R., Whitten, J.L., Goudge, T.A., Baker, D.M.H., Hurwitz, D.M., Byrne, P.K. & Klimczak, C. (2012). Effusive volcanism on Mercury from MESSENGER mission data: Nature and significance for lithospheric stress state and mantle convection. Lunar Planet. Sci., 43, abstract 1451.
Helbert, J., D’Amore, M., Maturilli, A., Izenberg, N.R., Klima, R.L., Holsclaw, G.M., McClintock, W.E., Sprague, A.L., Vilas, F., Domingue, D.L., D’Incecco, P., Head, J.W., Gillis-Davis, J.J. & Solomon, S.C. (2011). High-temperature laboratory measurements in support of a statistical analysis of spectral data from MESSENGER. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1587.
Helbert, J., D’Amore, M., Maturilli, A., Sprague, A.L. & Izenberg, N.R. (2011). Bridging from MESSENGER to BepiColombo – surface composition from visual and near-infrared observations and simulation of thermal infrared data. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-764.
Hoehler, T.M., McCollom, T., Schrenk, M.O., Kubo, M. & Cardace, D. (2011). One-carbon (bio?)geochemistry in subsurface waters of the serpentinizing Coast Range Ophiolite. [invited talk]. Abstract B22A-04 presented at 2011 Fall Meeting, AGU, San Francisco, CA.
Hurwitz, D.M., Head, J.W., Zuber, M.T., Smith, D.E., Neumann, G.A., Strom, R.G., Fassett, C.I., Denevi, B.W., Blewett, D.T., Ernst, C.M., Watters, T.R., Solomon, S.C., Byrne, P.K., Klimczak, C., Murchie, S.L., M Prockter, L., Chabot, N.L., Gillis-Davis, J.J., Whitten, J.L., Goudge, T.A., Baker, D.M.H., Ostrach, L.R., Xiao, Z., Merline, W.J., Dickson, D.L., Oberst, J. & Nittler, L.R. (2011). Lava erosion on Mercury: Model results using new observations from MESSENGER. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1591.
Interlichia, K., Papineau, D., Bleeker, W., Hallmann, C., Swarth, C., She, Z. & Fogel, M. (2012). Carbon chemostratigraphy of the Paleoproterozoic Belcher, Nastapoka, and Richmond Gulf Groups: A key to early Earth atmosphere and life history. Goldschmidt Conference, 2519.
Izenberg, N.R., Holsclaw, G.M., Domingue, D.L., McClintock, W.E., Blewett, D.T., Kochte, M.C., Helbert, J., Sprague, A.L., Vilas, F. & Solomon, S.C. (2011). Surface reflectance of Mercury from MESSENGER orbital observations. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-860.
Izenberg, N.R., Holsclaw, G.M., Domingue, D.L., McClintock, W.E., Klima, R.L., Blewett, D.T., Helbert, J., Sprague, A.L., Vilas, F. & Solomon, S.C. (2012). Mercury’s surface reflectance at ultraviolet to near-infrared wavelengths: Characteristics and variations. Asia Oceania Geosciences Society – American Geophysical Union (Western Pacific Geophysics Meeting) Joint Assembly, Singapore, paper PS06-A003, http://www.asiaoceania.org/aogs2012/mars2/timetable.asp.
Izenberg, N.R., Holsclaw, G.M., Domingue, D.L., McClintock, W.E., Klima, R.L., Blewett, D.T., Kochte, M.C., Helbert, J., D’Amore, M., Sprague, A.L., Vilas, F. & Solomon, S.C. (2012). Ultraviolet through near-infrared reflectance variation on Mercury and the search for mineralogical telltales. Lunar Planet. Sci., 43, abstract 2365.
Izenberg, N.R., Klima, R.L., Pashai, P., Holsclaw, G.M., McClintock, W.E., Sprague, A.L., Vilas, F., Domingue, D.L., Blewett, D.T., Murchie, S.L., Gillis-Davis, J.J., Helbert, J., Kochte, M.C., Head, J.W. & Solomon, S.C. (2011). Ultraviolet to near-infrared spectral variation of geologic end-members on Mercury. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43E-06.
Johnson, C.L., Anderson, B.J., Purucker, M.E., Alexeev, I.I., Al Asad, M., Korth, H., Phillips, R.J., Slavin, J.A., Solomon, S.C., Winslow, R.M. & Zuber, M.T. (2011). Observations of internal and external magnetic fields at Mercury. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1570.
Johnson, C.L., Purucker, M.E., Anderson, B.J., Winslow, R.M., Al Asad, M., Korth, H., Slavin, J.A., Alexeev, I.I., Ritzer, J.A., Phillips, R.J., Zuber, M.T. & Solomon, S.C. (2012). MESSENGER observations of Mercury’s magnetic field structure. Lunar Planet. Sci., 43, abstract 1355.
Kafka, S. & Hubeny, I. (2012). Challenges to Observations of Low Mass Binaries. IAU Symposium, 282: 99-104.
Klimczak, C., Ernst, C.M., Byrne, P.K., Solomon, S.C. & Watters, T.R. (2012). Fault restriction in the Caloris smooth plains: Implications for mechanical stratigraphy. Lunar Planet. Sci., 43, abstract 1959.
Klimczak, C., Watters, T.R., Byrne, P.K., Ernst, C.M., Solomon, S.C., Goudge, T.A., Head, J.W. & Xiao, Z. (2011). Strain analysis of extension in volcanically flooded impact craters on Mercury. Abstracts with Programs, 43 (5), paper 142-10, p. 359, Geological Society of America, Boulder, Colo. (CD-ROM).
Lawrence, D.J., Feldman, W.C., Evans, L.G., Goldsten, J.O., McNutt, R.L., Nittler, L.R., Peplowski, P.N., Prettyman, T.H. & Solomon, S.C. (2012). Hydrogen at Mercury’s north pole? Update on MESSENGER neutron measurements. Lunar Planet. Sci., 43, abstract 1802.
Lemoine, F.G., Mazarico, E.M., Rowlands, D.D., Torrence, M.H., Perry, M.E., Smith, D.E. & Zuber, M.T. (2011). The determination of the gravity field of Mercury from MESSENGER data. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P44B-02.
Lemoine, F.G., Smith, D.E., Peale, S.J., Phillips, R.J., Solomon, S.C., Zuber, M.T., Margot, J-L., Neumann, G.A., Torrence, M.H. & Perry, M.E. (2011). Mercury’s gravity field from MESSENGER after 6 months in orbit. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-139.
Lim, L.F., Emery, J.P., Moskovitz, N.A. & Granvik, M. (2012). The Near-Earth Encounter of 2005 YU55: Thermal Infrared Observations from Gemini North. LPI Contributions, 1667: 6295.
Lim, L.F., Emery, J.P., Moskovitz, N.A. & Granvik, M. (2012). The Near-Earth Encounter of 2005~YU55: Thermal Infrared Observations from Gemini North. Lunar and Planetary Institute Science Conference Abstracts.
Mansaray, Z. (2012). Sulfide flux as a function of temperature in the Severn River Senior Thesis at the University of Maryland.
Margot, J-L., Padovan, S., Peale, S.J. & Solomon, S.C. (2011). Ground-based measurements of Mercury’s spin state and inferences about its interior. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P44B-01.
Margot, J-L., Padovan, S., Peale, S.J. & Solomon, S.C. (2012). Measurements of Mercury’s spin state, moment of inertia, and core size. Asia Oceania Geosciences Society – American Geophysical Union (Western Pacific Geophysics Meeting) Joint Assembly, Singapore, paper PS06-A010, http://www.asiaoceania.org/aogs2012/mars2/timetable.asp.
Mazarico, E., Lemoine, F.G., Goossens, S.J., Smith, D.E., Zuber, M.T., Neumann, G.A., Torrence, M.H., Rowlands, D.D. & Solomon, S.C. (2012). The gravity field of Mercury from MESSENGER. Lunar Planet. Sci., 43, abstract 2189.
McCollom, T.M., Hynek, B.M. & Rogers, K.L. (2011). Mineral alteration in acid-sulfate fumaroles on Earth and Mars. AGU General Meeting, San Francisco, 2011.
McNutt, R.L., Jr., Solomon, S.C., Blewett, D.T., Evans, L.G., Murchie, S.L., Nittler, L.R., Philips, R.J., Slavin, J.A., Zuber, M.T. & R. J. Vervack, J. (2012). A new view of Mercury: MESSENGER’s first year in orbit. paper B0.7-0001-12, presented at 39th COSPAR Scientific Assembly, Mysore, India, https://www.cospar-assembly.org/abstractcd/COSPAR-12/.
McNutt, R.L., Jr., Solomon, S.C., Blewett, D.T., Evans, L.G., Murchie, S.L., Nittler, L.R., Philips, R.J., Slavin, J.A., Zuber, M.T. & Vervack, R.J. (2012). A closer look at Mercury: The MESSENGER extended mission. paper B0.10-0007-12, presented at 39th COSPAR Scientific Assembly, Mysore, India, https://www.cospar-assembly.org/abstractcd/COSPAR-12/.
McNutt, R.L., Solomon, S.C., Bedini, P.D., Anderson, B.J., Blewett, D.T., Evans, L.G., Gold, R.E., Johnson, C.L., Murchie, S.L., Nittler, L.R., Phillips, R.J., Prockter, L.M., Slavin, J.A., Finnegan, E.J., Grant, D.G. & Team, M. (2012). The new view of Mercury after MESSENGER’s first year in orbit. Asia Oceania Geosciences Society – American Geophysical Union (Western Pacific Geophysics Meeting) Joint Assembly, Singapore, paper PS06-A004, http://www.asiaoceania.org/aogs2012/mars2/timetable.asp.
Michel, N., Hauck, S.A., Johnson, C.L., Peplowski, P.N., Phillips, R.J. & Solomon, S.C. (2011). Dynamics and evolution of Mercury’s interior as constrained by MESSENGER observations. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1581.
Michel, N.C., Hauck, S.A., Solomon, S.C., Phillips, R.J., Roberts, J.H. & Zuber, M.T. (2012). Implications of MESSENGER observations for mantle convection on Mercury. Lunar Planet. Sci., 43, abstract 1671.
Morrill, P.L., Szponar, N., Kavanagh, M.H., Rietze, A., Brazelton, W., Schrenk, M., Bower, D.M., Steele, A., Kuenen, J.G., Suzuki-Ishii, S. & Nealson, K.H. (2011). Sourcing methane at two continental sites of present-day serpentinization: The Tablelands, NL, CAN and The Cedars, CA, USA. [poster]. Astrobiology Science Conference, Atlanta, Georgia.
Moskovitz, N. & Walker, R. (2011). Size of the Group IVA Iron Meteorite Parent Body. EPSC-DPS Joint Meeting 2011, 1652.
Moskovitz, N. & Warner, B.D. (2011). Call for Lightcurves: Fast Flyby of Near-Earth Asteroid 2005 YU55. Minor Planet Bulletin, 38: 220.
Moskovitz, N. & Willman, M. (2011). Spectro-photometry of Dynamically Associated Asteroid Pairs. EPSC-DPS Joint Meeting 2011, 1635.
Moskovitz, N. (2012). Colors of Dynamically Associated Asteroid Pairs. ArXiv e-prints. Vol. 1207.
Moskovitz, N., Vokrouhlicky, D. & Willman, M. (2011). Constraints on Space Weathering from the Albedos of WISE-detected Asteroids. EPSC-DPS Joint Meeting 2011.
Moskovitz, N.A. & Walker, R.J. (2011). Size of the Group IVA Iron Meteorite Core: Constraints from the Age and Composition of Muonionalusta. Meteoritics and Planetary Science Supplement, 74: 5505.
Moskovitz, N.A. & Warner, B.D. (2012). Rotational Properties of V-Type Asteroid 2579 Spartacus. LPI Contributions, 1667: 6071.
Moskovitz, N.A. (2012). Spectro-Photometry of Dynamically Associated Asteroid Pairs. Lunar and Planetary Institute Science Conference Abstracts, 43: 2032.
Moskovitz, N.A., Yang, B., Lim, L.F., Emery, J.P., Granvik, M., Sheppard, S.S., Willman, M. & McMillan, M. (2012). The Near-Earth Encounter of Asteroid 2005 YU55: Visible and Near-Infrared Spectroscopy. Lunar and Planetary Institute Science Conference Abstracts.
Moskovitz, N.A., Yang, B., Lim, L.F., Willman, M., Rivkin, A.S., Emery, J.P., Granvik, M. & Sheppard, S.S. (2012). The Near-Earth Encounter of 2005 YU55: Time-Resolved Visible and Near-Infrared Spectroscopy. LPI Contributions, 1667: 6382.
Moskovitz, N.A., Yang, B., Lim, L.F., Willman, M., Rivkin, A.S., Emery, J.P., Granvik, M. & Sheppard, S.S. (2012). The Near-Earth encounter of 2005 YU55: Time-resolved visible and near-infrared spectroscopy. Asteroids, Comets and Meteorrs.
Murchie, S.L., Robinson, M.S., Head, J.W., Strom, R.G., Prockter, L.M., Solomon, S.C., Watters, T.R., Blewett, D.T., Chabot, N.L. & Denevi, B.W. (2011). Results from MESSENGER’s first solar day of orbital imaging of Mercury. Abstracts with Programs, 43 (5), paper 142-1, p. 357, Geological Society of America, Boulder, Colo. (CD-ROM).
Mysen, B.O. (2011). Solubility and speciation of volatiles in melts coexisting with COHN fluids at high temperature and pressure with redox conditions: Influence on isotope fraction and melt properties. 9th Annual Silicate Melt Workshop. La Petite Pierre, France.
Mysen, B.O. (2012). Refractory oxides in high-pressure/high-temperature, silicate-saturated aqueous solutions. 53rd Annual Japanese High-Pressure Conference. Osaka, Japan.
Mysen, B.O. (2012). Structure-property relationships of COHN-saturated silicate melt coexisting with COHN fluid at high temperature and pressure with variable redox conditions. Chem. Geol. Special Issue (Silicate Melts and Glasses). Chem. Geol. Special Issue (Silicate Melts and Glasses), In Press.
Méhay, S., Früh-Green, G.L., Lang, S.Q., Bernasconi, S.M., Brazelton, W.J., Schrenk, M.O., Schaeffer, P. & Adam, P. Record of archaeal activity at the serpentinite-hosted Lost City Hydrothermal Field. Geobiology.
Nelson, B., Chowdhury, S., Brazelton, W. & Schrenk, M. (2011). Metabolic and Physiological Characteristics of Novel Cultivars from Serpentinite Seep Fluids. [poster]. Abstract B51K-0562 presented at 2011 Fall Meeting, AGU, San Francisco, CA,.
Neumann, G.A., Cavanaugh, J.F., Sun, X., Mazarico, E., Smith, D.E., Zuber, M.T., Solomon, S.C. & Paige, D.A. (2012). Dark material at the surface of polar crater deposits on Mercury. Lunar Planet. Sci., 43, abstract 2651.
Neumann, G.A., Lemoine, F.G., Mazarico, E.M., Smith, D.E., Zuber, M.T., Torrence, M.H., Barnouin, O.S. & Solomon, S.C. (2011). Laser altimetry of Mercury, Moon, and Mars. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41F-0.
Neumann, G.A., Solomon, S.C., Zuber, M.T., Phillips, R.J., Barnouin, O.S., Ernst, C.M., Goossens, S., Hauck, S.A., Head, J.W., Johnson, C.L., Lemoine, F.G., Margot, J-L., McNutt, R.L., Mazarico, E., Oberst, J., Peale, S.J., Perry, M.E., Purucker, M.E., Rowlands, D.D., Smith, D.E. & Torrence, M.H. (2012). Gravity, topography, and magnetic field of Mercury from MESSENGER. paper B0.7-0007-12, presented at 39th COSPAR Scientific Assembly, Mysore, India, https://www.cospar-assembly.org/abstractcd/COSPAR-12/.
Nicholas, J.B., Purucker, M.E., Johnson, C.L., Sabaka, T.J., Olsen, N., Al Asad, M., Anderson, B.J., Korth, H., Slavin, J.A., Alexeev, I.I., Belenkaya, E.S., Phillips, R.J., Solomon, C., Lillis, R.J., Langlais, B., Winslow, R.M., Russell, C.T., Dougherty, M.K. & Zuber, M.T. (2011). Magnetic fields of the solar system: A comparative planetary toolkit. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract GP21B-0992.
Nittler, L.R., Weider, S.Z., Starr, R.D., McCoy, T.J., Ebel, D.S., Lawrence, D.J., McNutt, R.L., Schlemm, C.E., Solomon, S.C. & Sprague, S.L. (2011). Major elements on Mercury’s surface from MESSENGER X-ray spectrometry. Abstracts with Programs, 43 (5), paper 142-3, p. 357, Geological Society of America, Boulder, Colo. (CD-ROM).
Orosz, J.A., Welsh, W.F., Carter, J.A., Fabrycky, D.C., Cochran, W.D., Endl, M., Ford, E.B., Haghighipour, N., MacQueen, P.J., Mazeh, T., Sanchis-Ojeda, R., Short, D.R., Torres, G., Agol, E., Buchhave, L.A., Doyle, L.R., Isaacson, H., Lissauer, J.J., Marcy, G.W., Shporer, A., Windmiller, G., Barclay, T., Boss, A.P., Clarke, B.D., Fortney, J., Geary, J.C., Holman, M.J., Huber, D., Jenkins, J.M., Kinemuchi, K., Kruse, E., Ragozzine, D., Sasselov, D., Still, M., Tenenbaum, P., Uddin, K., Winn, J.N., Koch, D.G. & Borucki, W.J. (2012). Kepler-47: A Transiting Circumbinary Multi-Planet System. ArXiv e-prints. Vol. 1208.
Ostrach, L.R., Chapman, C.R., Fassett, C.I., W Head, J., Merline, W.J., Robinson, M.S., Solomon, S.C., Strom, R.G. & Xiao, Z. (2011). Crater statistics for the northern polar region of Mercury derived from MESSENGER orbital data. Abstracts with Programs, 43 (5), paper 142-14, p. 360, Geological Society of America, Boulder, Colo. (CD-ROM).
Padovan, S., Margot, J-L., Hauck, S.A., Lemoine, F.G., Mazarico, E.M., Peale, S.J. & Solomon, S.C. (2011). Modeling of Mercury tides for recovery of gravity field and interior properties. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1573.
Paige, D.A., Siegler, M.A., Harmon, J.K., Smith, D.E., Zuber, M.T. & Solomon, S.C. (2011). Stability of ices in the north polar region of Mercury. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-1639.
Paige, D.A., Siegler, M.A., Harmon, J.K., Smith, D.E., Zuber, M.T., Neumann, G.A. & Solomon, S.C. (2012). Thermal stability of frozen volatiles in the north polar region of Mercury. Lunar Planet. Sci., 43, abstract 2875.
Papineau, D. (2012). Carbonaceous material associated with apatite in the Chassigny meteorite from Mars. Astrobiology Science Conference.
Papineau, D. (2012). Carbonaceous material associated with apatite in the Chassigny meteorite from Mars. Goldschmidt Conference, 3385.
Papineau, D. (2012). Organic matter associated with apatite in Martian meteorite Chassigny. 43rd Lunar and Planetary Science Conference.
Papineau, D., De Gregorio, B.T., McMahon, G., She, Z., Maniscalco, L., Consolmagno, G. & Jackson, M. Clues for the origin of life on Earth in the Chassigny meteorite from Mars. Nature, 36.
Peeters, Z., Alexander, C.M.O.D., Changela, H., Nittler, L.R., Price, S. & Stroud, R.M. (2011). In situ synchrotron X-ray transmission microscopy of CR chondrites QUE 991777 and GRA 95229. Meteoritics and Planetary Science (Supp.), Abstract #5476.
Peeters, Z., Changela, H., Stroud, R.H., Alexander, C.M.O.D. & Nittler, L.R. (2012). Organic Carbon Inclusions in CR2 Chondrite Graves Nunataks 95229. Meteoritics and Planetary Science Supplement, 75: 5283.
Peplowski, P.N., Evans, L.G., Hamara, D.K., Lawrence, D.J., Rhodes, E.A., Sprague, A.L. & Solomon, S.C. (2012). Compositional variability of the surface of Mercury: Results from the MESSENGER Gamma-Ray Spectrometer. Lunar Planet. Sci., 43, abstract 1541.
Peplowski, P.N., Hamara, D.K., Evans, L.G., McCoy, T.J., Boynton, W.V., Lawrence, D.J., Nittler, L.R., Rhodes, E.A., Solomon, S.C. & Sprague, A.L. (2011). Potassium and thorium on the surface of Mercury: Early results from the MESSENGER Gamma-Ray Spectrometer. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-1170.
Perry, M.E., Kahan, D.S., Barnouin, O.S., Ernst, C.M., Solomon, S.C., Zuber, M.T., Smith, D.E., Phillips, R.J., Asmar, S.W. & Oberst, J. (2011). Mercury’s radius and shape from radio occultations. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-1285.
Perry, M.E., Kahan, D.S., Barnouin, O.S., Ernst, C.M., Solomon, S.C., Zuber, M.T., Smith, D.E., Phillips, R.J., Hauck, S.A., Lemoine, F.G., Neumann, G.A., Peale, S.J., Margot, J-L., Mazarico, E.M. & McNutt, R.L. (2011). The shape of Mercury’s south-polar region. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1575.
Phillips, R.J., Zuber, M.T., Smith, D.E., Hauck, S.A., Lemoine, F.G., Mazarico, E.M., Neumann, G.A., Peale, S.J., Margot, J-L., Johnson, C.L., Perry, M.E., Head, J.W. & Solomon, S.C. (2011). Mercury lithosphere and crustal properties from MESSENGER orbital observation. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P43E-03.
Preusker, F., Oberst, J., Blewett, D.T., Gwinner, K., Head, J.W., Murchie, S.L., Robinson, M.S., Watters, T.R., Zuber, M.T. & Solomon, S.C. (2012). Topography of Mercury from stereo images: First samples from MESSENGER orbital mapping. Lunar Planet. Sci., 43, abstract 1913.
Prockter, L.M., Baker, D.M.H., Head, J.W., Murchie, S.L., Ernst, C.M., Chapman, C.R., Denevi, B.W., Solomon, S.C., Watters, T.R. & Massironi, M. (2011). The geology of medium-sized impact basins on Mercury. Abstracts with Programs, 43 (5), paper 142-11, p. 359, Geological Society of America, Boulder, Colo., 2011 (CD-ROM).
Prockter, L.M., Murchie, S.L., Ernst, C.M., Baker, D.M.H., Byrne, P.K., Head, J.W., Watters, T.R., Denevi, B.W., Chapman, C.R. & Solomon, S.C. (2012). The geology of medium-sized basins on Mercury: Implications for surface processes and evolution. Lunar Planet. Sci., 43, abstract 1326.
Prockter, L.M., Solomon, S.C., McNutt, R.L., Anderson, B.J., Blewett, D.T., Evans, L.G., Gold, R.E., Murchie, S.L., Nittler, L.R., Phillips, R.J., Slavin, J.A., Vervack, R.J. & Zuber, M.T. (2012). The new view of Mercury after MESSENGER’s first year in orbit. Geophys. Res. Abstracts, 14, abstract EGU2012-6188-1.
Purucker, M.E., Johnson, C.L., Anderson, B.J., Korth, H., Winslow, R.M., Nicholas, J.B., Zuber, M.T., Solomon, S.C., Slavin, J.A., Alexeev, I.I., Phillips, R.J., Paige, D.A. & Head, J.W. (2012). Processes producing the large-scale magnetic field of Mercury. Geophys. Res. Abstracts, 14, abstract EGU2012-2495.
Purucker, M.E., Johnson, C.L., Moldovan, R., Zuber, M.T., Solomon, S.C., Anderson, B.J., Korth, H., Paige, D.A., Slavin, J.A., Alexeev, I.I. & Phillips, R.J. (2011). A search for the crustal magnetization signature of variations in insolation at Mercury. EPSC-DPS Joint Meeting Abstracts and Program, abstract EPSC-DPS2011-458.
Purucker, M.E., Johnson, C.L., Winslow, R.M., Nicholas, J.B., Anderson, B.J., Korth, H., Head, J.W., Zuber, M.T., Solomon, S.C., Slavin, J.A., Alexeev, I.I., Phillips, R.J. & Paige, D.A. (2012). Evidence for a crustal magnetic signature on Mercury from MESSENGER Magnetometer observations. Lunar Planet. Sci., 43, abstract 1297.
Purucker, M.E., Johnson, C.L., Winslow, R.M., Zuber, M.T., Solomon, S.C., Anderson, B.J., Korth, H., Paige, D.A., Slavin, J.A., Alexeev, I.I. & Phillips, R.J. (2011). A search for a crustal magnetization signature of variations in insolation at Mercury. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1571.
Rhodes, E.A., Peplowski, P.N., Evans, L.G., Hamara, D.K. & Solomon, S.C. (2012). Element abundances from MESSENGER’s Gamma-Ray Spectrometer: Background normalization. Lunar Planet. Sci., 43, abstract 1555.
Rhodes, E.A., Peplowski, P.N., Evans, L.G., Hamara, D.K., Boynton, W.V. & Solomon, S.C. (2011). Orbit normalization of MESSENGER Gamma-Ray Spectrometer data. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1583.
Richardson, S.H. & Shirey, S.B. (2011). Subcontinental mantle evidence for the onset of plate tectonics at 3 Ga in relation to Earth’s thermal evolution. EOS Transactions of the AGU, 92: U44A-08.
Ritzer, J.A., Johnson, C.L., Hauck, S.A., Watters, T.R., Barnouin, O.S., Neumann, G.A., Mazarico, E.M., Phillips, R.J., Solomon, S.C. & Zuber, M.T. (2011). Laser altimetry by MESSENGER over lobate scarps reveals the lithospheric structure of Mercury. 2011 Fall Meeting, American Geophysical Union, San Francisco, Calif, abstract P41A-1594.
Roberge, A., Chen, C.H., Millan-Gabet, R., Weinberger, A.J., Hinz, P.M., Stapelfeldt, K.R., Absil, O., Kuchner, M.J. & Bryden, G. (2012). The Exozodiacal Dust Problem for Direct Observations of Exo-Earths. Publications of the Astronomical Society of the Pacific.
Rogers, K.L. & Schulte, M.D. (2012). Potential for organic-sulfur based metabolisms in deep-sea vent systems. 2nd International Workshop on Microbial Life under Extreme Energy Limitation, Aarhus University, Denmark.
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2012 Annual Science Report

Carnegie Institution of Washington Reporting | SEP 2011 – AUG 2012

Executive Summary

Publications