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Microbial Mat - Environment Interactions in Lake Joyce, Antarctica, and Implications for Archean Microbialites

Presenter: Dawn Sumner, University of California, Davis
When: May 25, 2010 2:30PM PDT

Microbial mats in ice covered lakes in Antarctica developed in an environment with little disruption from currents or grazing.  Thus, their growth morphology more directly reflects microbial processes than many stromatolites and other microbialites.  However, the history of lake level rise and sedimentation also influenced microbialite morphology.  I will discuss our on going project to constrain microbial processes that influence morphology and how results provide insight into interpretations of Archean microbialites.

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