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Volatile and Organic Compositions of Sedimentary Rocks in Yellowknife Bay, Gale Crater, Mars.

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Title: Volatile and Organic Compositions of Sedimentary Rocks in Yellowknife Bay, Gale Crater, Mars.
Authors: Ming, D. W., Archer Jr., P. D., Glavin, D. P., Eigenbrode, J. L., Franz, H. B., Sutter, B., Brunner, A. E., Stern, J. C., Freissinet, C., McAdam, A. C., Mahaffy, P. R., Cabane, M., Coll, P., Campbell, J. L., Atreya, S. K., Niles, P. B., Bell III, J. F., Bish, D. L., Brinckerhoff, W. B., Buch, A.
Source: Science (pre-March 2025). 1/24/2014, Vol. 343 Issue 6169, p1-9. 9p.
Subjects: Sedimentary rocks, Chlorohydrocarbons, Trace gases, Pyrolysis, Gale Crater (Mars), Martian surface, Martian exploration
Abstract: H2O, CO2, SO2, O2, H2, H2S, HCl, chlorinated hydrocarbons, NO, and other trace gases were evolved during pyrolysis of two mudstone samples acquired by the Curiosity rover at Yellowknife Bay within Gale crater, Mars. H2O/OH-bearing phases included 2:1 phyllosilicate(s), bassanite, akaganeite, and amorphous materials. Thermal decomposition of carbonates and combustion of organic materials are candidate sources for the CO2. Concurrent evolution of O2 and chlorinated hydrocarbons suggests the presence of oxychlorine phase(s). Sulfides are likely sources for sulfur-bearing species. Higher abundances of chlorinated hydrocarbons in the mudstone compared with Rocknest windblown materials previously analyzed by Curiosity suggest that indigenous martian or meteoritic organic carbon sources may be preserved in the mudstone; however, the carbon source for the chlorinated hydrocarbons is not definitively of martian origin. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Volatile and Organic Compositions of Sedimentary Rocks in Yellowknife Bay, Gale Crater, Mars.
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  Data: <searchLink fieldCode="AR" term="%22Ming%2C+D%2E+W%2E%22">Ming, D. W.</searchLink><br /><searchLink fieldCode="AR" term="%22Archer+Jr%2E%2C+P%2E+D%2E%22">Archer Jr., P. D.</searchLink><br /><searchLink fieldCode="AR" term="%22Glavin%2C+D%2E+P%2E%22">Glavin, D. P.</searchLink><br /><searchLink fieldCode="AR" term="%22Eigenbrode%2C+J%2E+L%2E%22">Eigenbrode, J. L.</searchLink><br /><searchLink fieldCode="AR" term="%22Franz%2C+H%2E+B%2E%22">Franz, H. B.</searchLink><br /><searchLink fieldCode="AR" term="%22Sutter%2C+B%2E%22">Sutter, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Brunner%2C+A%2E+E%2E%22">Brunner, A. E.</searchLink><br /><searchLink fieldCode="AR" term="%22Stern%2C+J%2E+C%2E%22">Stern, J. C.</searchLink><br /><searchLink fieldCode="AR" term="%22Freissinet%2C+C%2E%22">Freissinet, C.</searchLink><br /><searchLink fieldCode="AR" term="%22McAdam%2C+A%2E+C%2E%22">McAdam, A. C.</searchLink><br /><searchLink fieldCode="AR" term="%22Mahaffy%2C+P%2E+R%2E%22">Mahaffy, P. R.</searchLink><br /><searchLink fieldCode="AR" term="%22Cabane%2C+M%2E%22">Cabane, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Coll%2C+P%2E%22">Coll, P.</searchLink><br /><searchLink fieldCode="AR" term="%22Campbell%2C+J%2E+L%2E%22">Campbell, J. L.</searchLink><br /><searchLink fieldCode="AR" term="%22Atreya%2C+S%2E+K%2E%22">Atreya, S. K.</searchLink><br /><searchLink fieldCode="AR" term="%22Niles%2C+P%2E+B%2E%22">Niles, P. B.</searchLink><br /><searchLink fieldCode="AR" term="%22Bell+III%2C+J%2E+F%2E%22">Bell III, J. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Bish%2C+D%2E+L%2E%22">Bish, D. L.</searchLink><br /><searchLink fieldCode="AR" term="%22Brinckerhoff%2C+W%2E+B%2E%22">Brinckerhoff, W. B.</searchLink><br /><searchLink fieldCode="AR" term="%22Buch%2C+A%2E%22">Buch, A.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 1/24/2014, Vol. 343 Issue 6169, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Sedimentary+rocks%22">Sedimentary rocks</searchLink><br /><searchLink fieldCode="DE" term="%22Chlorohydrocarbons%22">Chlorohydrocarbons</searchLink><br /><searchLink fieldCode="DE" term="%22Trace+gases%22">Trace gases</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrolysis%22">Pyrolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Gale+Crater+%28Mars%29%22">Gale Crater (Mars)</searchLink><br /><searchLink fieldCode="DE" term="%22Martian+surface%22">Martian surface</searchLink><br /><searchLink fieldCode="DE" term="%22Martian+exploration%22">Martian exploration</searchLink>
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  Label: Abstract
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  Data: H2O, CO2, SO2, O2, H2, H2S, HCl, chlorinated hydrocarbons, NO, and other trace gases were evolved during pyrolysis of two mudstone samples acquired by the Curiosity rover at Yellowknife Bay within Gale crater, Mars. H2O/OH-bearing phases included 2:1 phyllosilicate(s), bassanite, akaganeite, and amorphous materials. Thermal decomposition of carbonates and combustion of organic materials are candidate sources for the CO2. Concurrent evolution of O2 and chlorinated hydrocarbons suggests the presence of oxychlorine phase(s). Sulfides are likely sources for sulfur-bearing species. Higher abundances of chlorinated hydrocarbons in the mudstone compared with Rocknest windblown materials previously analyzed by Curiosity suggest that indigenous martian or meteoritic organic carbon sources may be preserved in the mudstone; however, the carbon source for the chlorinated hydrocarbons is not definitively of martian origin. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1126/science.1245267
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