NASA Astrobiology

November 2017Differential metamorphic effects on nitrogen isotopes in kerogen extracts and bulk rocks

Stüeken, E. E., Zaloumis, J., Meixnerová, J., & Buick, R. (2017). Differential metamorphic effects on nitrogen isotopes in kerogen extracts and bulk rocks. Geochimica et Cosmochimica Acta, 217, 80–94. doi:10.1016/j.gca.2017.08.019

October 2017New biostratigraphic and chemostratigraphic data from the Ediacaran Doushantuo Formation in intra-shelf and upper slope facies of the Yangtze platform: Implications for biozonation of acanthomorphic acritarchs in South China

Hawkins, A. D., Xiao, S., Jiang, G., Wang, X., & Shi, X. (2017). New biostratigraphic and chemostratigraphic data from the Ediacaran Doushantuo Formation in intra-shelf and upper slope facies of the Yangtze platform: Implications for biozonation of acanthomorphic acritarchs in South China. Precambrian Research, 300, 28–39. doi:10.1016/j.precamres.2017.08.004

September 2017The ruthenium isotopic composition of the oceanic mantle

Bermingham, K. R., & Walker, R. J. (2017). The ruthenium isotopic composition of the oceanic mantle. Earth and Planetary Science Letters, 474, 466–473. doi:10.1016/j.epsl.2017.06.052

A warm or a cold early Earth? New insights from a 3-D climate-carbon model

Charnay, B., Le Hir, G., Fluteau, F., Forget, F., & Catling, D. C. (2017). A warm or a cold early Earth? New insights from a 3-D climate-carbon model. Earth and Planetary Science Letters, 474, 97–109. doi:10.1016/j.epsl.2017.06.029

Adaptive Sample Selection for Hypothesis Falsification

Furlong, P.. "Adaptive Sample Selection for Hypothesis Falsification" AAAI Workshops (2017): n. pag. Web. 6 Sep. 2017

Comparison of two bioinformatics tools used to characterize the microbial diversity and predictive functional attributes of microbial mats from Lake Obersee, Antarctica

Koo, H., Hakim, J. A., Morrow, C. D., Eipers, P. G., Davila, A., Andersen, D. T., & Bej, A. K. (2017). Comparison of two bioinformatics tools used to characterize the microbial diversity and predictive functional attributes of microbial mats from Lake Obersee, Antarctica. Journal of Microbiological Methods, 140, 15–22. doi:10.1016/j.mimet.2017.06.017

Beyond the stony veil: Reconstructing the Earth’s earliest large animal traces via computed tomography X-ray imaging

Meyer, M., Polys, N., Yaqoob, H., Hinnov, L., & Xiao, S. (2017). Beyond the stony veil: Reconstructing the Earth’s earliest large animal traces via computed tomography X-ray imaging. Precambrian Research, 298, 341–350. doi:10.1016/j.precamres.2017.05.010

Angrite meteorites record the onset and flux of water to the inner solar system

Sarafian, A. R., Nielsen, S. G., Marschall, H. R., Gaetani, G. A., Hauri, E. H., Righter, K., & Sarafian, E. (2017). Angrite meteorites record the onset and flux of water to the inner solar system. Geochimica et Cosmochimica Acta, 212, 156–166. doi:10.1016/j.gca.2017.06.001

Raman geothermometry of carbonaceous material in the basal Ediacaran Doushantuo cap dolostone: The thermal history of extremely negative δ 13 C signatures in the aftermath of the terminal Cryogenian snowball Earth glaciation

Wang, Z., Wang, J., Kouketsu, Y., Bodnar, R. J., Gill, B. C., & Xiao, S. (2017). Raman geothermometry of carbonaceous material in the basal Ediacaran Doushantuo cap dolostone: The thermal history of extremely negative δ 13 C signatures in the aftermath of the terminal Cryogenian snowball Earth glaciation. Precambrian Research, 298, 174–186. doi:10.1016/j.precamres.2017.06.013

August 2017Transient deep-water oxygenation in the early Cambrian Nanhua Basin, South China

Cheng, M., Li, C., Zhou, L., Feng, L., Algeo, T. J., Zhang, F., … Jiang, S. (2017). Transient deep-water oxygenation in the early Cambrian Nanhua Basin, South China. Geochimica et Cosmochimica Acta, 210, 42–58. doi:10.1016/j.gca.2017.04.032

1/2/3/4/5/6...279