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Redox stratification of an ancient lake in Gale crater, Mars

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dc.contributor.author Hurowitz, J. A. en
dc.contributor.author Grotzinger, J. P. en
dc.contributor.author Fischer, W. W. en
dc.contributor.author McLennan, S. M. en
dc.contributor.author Milliken, R. E. en
dc.contributor.author Stein, N. en
dc.contributor.author Vasavada, A. R. en
dc.contributor.author Blake, D. F. en
dc.contributor.author Dehouck, E. en
dc.contributor.author Eigenbrode, J. L. en
dc.contributor.author Fairen, A. G. en
dc.contributor.author Frydenvang, J. en
dc.contributor.author Gellert, R. en
dc.contributor.author Grant, John A. en
dc.contributor.author Gupta, S. en
dc.contributor.author Herkenhoff, K. E. en
dc.contributor.author Ming, D. W. en
dc.contributor.author Rampe, E. B. en
dc.contributor.author Schmidt, M. E. en
dc.contributor.author Siebach, K. L. en
dc.contributor.author Stack-Morgan, K. en
dc.contributor.author Sumner, D. Y. en
dc.contributor.author Wiens, R. C. en
dc.date.accessioned 2017-06-16T09:09:55Z
dc.date.available 2017-06-16T09:09:55Z
dc.date.issued 2017
dc.identifier.citation Hurowitz, J. A., Grotzinger, J. P., Fischer, W. W., McLennan, S. M., Milliken, R. E., Stein, N., Vasavada, A. R., Blake, D. F., Dehouck, E., Eigenbrode, J. L., Fairen, A. G., Frydenvang, J., Gellert, R., Grant, John A., Gupta, S., Herkenhoff, K. E., Ming, D. W., Rampe, E. B., Schmidt, M. E., Siebach, K. L., Stack-Morgan, K., Sumner, D. Y., and Wiens, R. C. 2017. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F32598">Redox stratification of an ancient lake in Gale crater, Mars</a>." <em>Science</em>. 356 (6341):922&ndash;+. <a href="https://doi.org/10.1126/science.aah6849">https://doi.org/10.1126/science.aah6849</a> en
dc.identifier.issn 0036-8075
dc.identifier.uri https://hdl.handle.net/10088/32598
dc.description.abstract In 2012, NASA&#39;s Curiosity rover landed on Mars to assess its potential as a habitat for past life and investigate the paleoclimate record preserved by sedimentary rocks inside the similar to 150-kilometer-diameter Gale impact crater. Geological reconstructions from Curiosity rover data have revealed an ancient, habitable lake environment fed by rivers draining into the crater. We synthesize geochemical and mineralogical data from lake-bed mudstones collected during the first 1300 martian solar days of rover operations in Gale. We present evidence for lake redox stratification, established by depth-dependent variations in atmospheric oxidant and dissolved-solute concentrations. Paleoclimate proxy data indicate that a transition from colder to warmer climate conditions is preserved in the stratigraphy. Finally, a late phase of geochemical modification by saline fluids is recognized. en
dc.relation.ispartof Science en
dc.title Redox stratification of an ancient lake in Gale crater, Mars en
dc.type Journal Article en
dc.identifier.srbnumber 142994
dc.identifier.doi 10.1126/science.aah6849
rft.jtitle Science
rft.volume 356
rft.issue 6341
rft.spage 922
rft.epage +
dc.description.SIUnit Peer-Reviewed en
dc.description.SIUnit NASM en
dc.description.SIUnit NASM-CEPS en
dc.citation.spage 922
dc.citation.epage +

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