Publication Date:
2004-08-07
Description:
The Microscopic Imager on the Spirit rover analyzed the textures of the soil and rocks at Gusev crater on Mars at a resolution of 100 micrometers. Weakly bound agglomerates of dust are present in the soil near the Columbia Memorial Station. Some of the brushed or abraded rock surfaces show igneous textures and evidence for alteration rinds, coatings, and veins consistent with secondary mineralization. The rock textures are consistent with a volcanic origin and subsequent alteration and/or weathering by impact events, wind, and possibly water.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herkenhoff, K E -- Squyres, S W -- Arvidson, R -- Bass, D S -- Bell, J F 3rd -- Bertelsen, P -- Cabrol, N A -- Gaddis, L -- Hayes, A G -- Hviid, S F -- Johnson, J R -- Kinch, K M -- Madsen, M B -- Maki, J N -- McLennan, S M -- McSween, H Y -- Rice, J W Jr -- Sims, M -- Smith, P H -- Soderblom, L A -- Spanovich, N -- Sullivan, R -- Wang, A -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):824-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Geological Survey Astrogeology Team, Flagstaff, AZ 86001, USA. kherkenhoff@usgs.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297663" target="_blank"〉PubMed〈/a〉
Keywords:
Extraterrestrial Environment
;
Geologic Sediments
;
*Mars
;
Volcanic Eruptions
;
Water
;
Wind
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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