Arid
DOI10.2138/am-2016-5599
High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars
Arvidson, Raymond E.1; Squyres, Steven W.2; Morris, Richard V.3; Knoll, Andrew H.4; Gellert, Ralf5; Clark, Benton C.6; Catalano, Jeffrey G.1; Jolliff, Brad L.1; McLennan, Scott M.7; Herkenhoff, Kenneth E.8; VanBommel, Scott5; Mittlefehldt, David W.3; Grotzinger, John P.9; Guinness, Edward A.1; Johnson, Jeffrey R.10; Bell, James F., III11; Farrand, William H.6; Stein, Nathan1; Fox, Valerie K.1; Golombek, Matthew P.12; Hinkle, Margaret A. G.1; Calvin, Wendy M.13; de Souza, Paulo A., Jr.14
通讯作者Arvidson, Raymond E.
来源期刊AMERICAN MINERALOGIST
ISSN0003-004X
EISSN1945-3027
出版年2016
卷号101期号:5-6页码:1389-1405
英文摘要

Mars Reconnaissance Orbiter HiRISE images and Opportunity rover observations of the similar to 22 km wide Noachian age Endeavour Crater on Mars show that the rim and surrounding terrains were densely fractured during the impact crater-forming event. Fractures have also propagated upward into the overlying Burns formation sandstones. Opportunity’s observations show that the western crater rim segment, called Murray Ridge, is composed of impact breccias with basaltic compositions, as well as occasional fracture-filling calcium sulfate veins. Cook Haven, a gentle depression on Murray Ridge, and the site where Opportunity spent its sixth winter, exposes highly fractured, recessive outcrops that have relatively high concentrations of S and Cl, consistent with modest aqueous alteration. Opportunity’s rover wheels serendipitously excavated and overturned several small rocks from a Cook Haven fracture zone. Extensive measurement campaigns were conducted on two of them: Pinnacle Island and Stuart Island. These rocks have the highest concentrations of Mn and S measured to date by Opportunity and occur as a relatively bright sulfate-rich coating on basaltic rock, capped by a thin deposit of one or more dark Mn oxide phases intermixed with sulfate minerals. We infer from these unique Pinnacle Island and Stuart Island rock measurements that subsurface precipitation of sulfate dominated coatings was followed by an interval of partial dissolution and reaction with one or more strong oxidants (e.g., O-2) to produce the Mn oxide mineral(s) intermixed with sulfate-rich salt coatings. In contrast to arid regions on Earth, where Mn oxides are widely incorporated into coatings on surface rocks, our results demonstrate that on Mars the most likely place to deposit and preserve Mn oxides was in fracture zones where migrating fluids intersected surface oxidants, forming precipitates shielded from subsequent physical erosion.


英文关键词Mars geochemistry mineralogy manganese oxides sulfates
类型Article
语种英语
国家USA ; Canada ; Australia
收录类别SCI-E
WOS记录号WOS:000378185600038
WOS关键词IMPACT STRUCTURE ; IRON CHEMISTRY ; MINERALOGY ; OXIDES
WOS类目Geochemistry & Geophysics ; Mineralogy
WOS研究方向Geochemistry & Geophysics ; Mineralogy
来源机构United States Geological Survey ; Arizona State University ; Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191224
作者单位1.Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA;
2.Cornell Univ, Dept Astron, Ithaca, NY 14853 USA;
3.NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA;
4.Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA;
5.Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada;
6.Space Sci Inst, Boulder, CO 80301 USA;
7.SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA;
8.US Geol Survey, Astrogeol Sci Ctr, Flagstaff, AZ 86001 USA;
9.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA;
10.Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA;
11.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85281 USA;
12.CALTECH, Jet Prop Lab, Pasadena, CA 91011 USA;
13.Univ Nevada, Geol Sci & Engn, Reno, NV 89503 USA;
14.CSIRO Digital Prod Flagship, Hobart, Tas 7004, Australia
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Arvidson, Raymond E.,Squyres, Steven W.,Morris, Richard V.,et al. High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars[J]. United States Geological Survey, Arizona State University, Commonwealth Scientific and Industrial Research Organisation,2016,101(5-6):1389-1405.
APA Arvidson, Raymond E..,Squyres, Steven W..,Morris, Richard V..,Knoll, Andrew H..,Gellert, Ralf.,...&de Souza, Paulo A., Jr..(2016).High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars.AMERICAN MINERALOGIST,101(5-6),1389-1405.
MLA Arvidson, Raymond E.,et al."High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars".AMERICAN MINERALOGIST 101.5-6(2016):1389-1405.
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