Evidence of phyllosilicates in Wooly Patch, an altered rock encountered at West Spur, Columbia Hills, by the Spirit rover in Gusev crater, Mars
On its traverse to Columbia Hills, the Mars Exploration Rover Spirit investigated an outcrop designated “Wooly Patch” that exhibited morphological, mineralogical, and geochemical characteristics at the extreme ends of ranges observed among rocks studied at West Spur, a westward projecting salient ne...
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| Veröffentlicht in: | Journal of Geophysical Research - Planets 2006-02, Vol.111 (E2), p.E02S16-n/a |
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| creator | Wang, Alian Korotev, Randy L. Jolliff, Bradley L. Haskin, Larry A. Crumpler, Larry Farrand, William H. Herkenhoff, Ken E. de Souza Jr, Paulo Kusack, Alastair G. Hurowitz, Joel A. Tosca, Nicholas J. |
| description | On its traverse to Columbia Hills, the Mars Exploration Rover Spirit investigated an outcrop designated “Wooly Patch” that exhibited morphological, mineralogical, and geochemical characteristics at the extreme ends of ranges observed among rocks studied at West Spur, a westward projecting salient near the foot of the Columbia Hills, Gusev crater. The major‐element composition and Fe‐mineralogy, as determined by the Alpha‐Particle X‐ray Spectrometer and Mössbauer Spectrometer, are inconsistent with any reasonable assemblage of basaltic minerals in that there is an excess of Si and Al. The combined data are best explained by the presence of 14–17% phyllosilicate minerals. Phyllosilicates that account for the composition and cation ratios include members of the kaolinite, serpentine, chlorite, and septechlorite groups. The potential existence of kaolinite‐type Al‐rich phyllosilicates within the Wooly Patch outcrop suggests a mildly acidic environment (pH 4–6) in the past and an open hydrologic system with good drainage conditions in the environment where these rocks were altered. |
| doi_str_mv | 10.1029/2005JE002516 |
| format | Article |
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The major‐element composition and Fe‐mineralogy, as determined by the Alpha‐Particle X‐ray Spectrometer and Mössbauer Spectrometer, are inconsistent with any reasonable assemblage of basaltic minerals in that there is an excess of Si and Al. The combined data are best explained by the presence of 14–17% phyllosilicate minerals. Phyllosilicates that account for the composition and cation ratios include members of the kaolinite, serpentine, chlorite, and septechlorite groups. The potential existence of kaolinite‐type Al‐rich phyllosilicates within the Wooly Patch outcrop suggests a mildly acidic environment (pH 4–6) in the past and an open hydrologic system with good drainage conditions in the environment where these rocks were altered.</description><identifier>ISSN: 0148-0227</identifier><identifier>EISSN: 2156-2202</identifier><identifier>DOI: 10.1029/2005JE002516</identifier><language>eng</language><publisher>American Geophysical Union</publisher><subject>Composition of the planets ; Geochemistry ; Gusev ; phyllosilicate ; Planetary geochemistry ; Spirit rover</subject><ispartof>Journal of Geophysical Research - Planets, 2006-02, Vol.111 (E2), p.E02S16-n/a</ispartof><rights>2008 American Geophysical Union</rights><rights>Copyright 2006 by the American Geophysical Union.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a5251-53dd0204ab63811145dddf521e511bb236ffad70e37d142484b9cb5898d498f03</citedby><cites>FETCH-LOGICAL-a5251-53dd0204ab63811145dddf521e511bb236ffad70e37d142484b9cb5898d498f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2005JE002516$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2005JE002516$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,782,786,1419,1435,11523,27933,27934,45583,45584,46418,46477,46842,46901</link.rule.ids></links><search><creatorcontrib>Wang, Alian</creatorcontrib><creatorcontrib>Korotev, Randy L.</creatorcontrib><creatorcontrib>Jolliff, Bradley L.</creatorcontrib><creatorcontrib>Haskin, Larry A.</creatorcontrib><creatorcontrib>Crumpler, Larry</creatorcontrib><creatorcontrib>Farrand, William H.</creatorcontrib><creatorcontrib>Herkenhoff, Ken E.</creatorcontrib><creatorcontrib>de Souza Jr, Paulo</creatorcontrib><creatorcontrib>Kusack, Alastair G.</creatorcontrib><creatorcontrib>Hurowitz, Joel A.</creatorcontrib><creatorcontrib>Tosca, Nicholas J.</creatorcontrib><title>Evidence of phyllosilicates in Wooly Patch, an altered rock encountered at West Spur, Columbia Hills, by the Spirit rover in Gusev crater, Mars</title><title>Journal of Geophysical Research - Planets</title><addtitle>J. Geophys. Res</addtitle><description>On its traverse to Columbia Hills, the Mars Exploration Rover Spirit investigated an outcrop designated “Wooly Patch” that exhibited morphological, mineralogical, and geochemical characteristics at the extreme ends of ranges observed among rocks studied at West Spur, a westward projecting salient near the foot of the Columbia Hills, Gusev crater. The major‐element composition and Fe‐mineralogy, as determined by the Alpha‐Particle X‐ray Spectrometer and Mössbauer Spectrometer, are inconsistent with any reasonable assemblage of basaltic minerals in that there is an excess of Si and Al. The combined data are best explained by the presence of 14–17% phyllosilicate minerals. Phyllosilicates that account for the composition and cation ratios include members of the kaolinite, serpentine, chlorite, and septechlorite groups. The potential existence of kaolinite‐type Al‐rich phyllosilicates within the Wooly Patch outcrop suggests a mildly acidic environment (pH 4–6) in the past and an open hydrologic system with good drainage conditions in the environment where these rocks were altered.</description><subject>Composition of the planets</subject><subject>Geochemistry</subject><subject>Gusev</subject><subject>phyllosilicate</subject><subject>Planetary geochemistry</subject><subject>Spirit rover</subject><issn>0148-0227</issn><issn>2156-2202</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkctuEzEUQC0EElHpjj1escrA9WseS4jSlKgtFQ8FsbE8Yw8xdcapPROYr-CXcTSoohuKN5Z8z7kPX4SeE3hFgFavKYBYLwGoIPkjNKNE5BmlQB-jGRBeZkBp8RSdxvgd0uEi50Bm6NfyYLXpGoN9i_fb0TkfrbON6k3EtsMb792Ir1XfbOdYdVi53gSjcfDNDU6eH7rpQfV4Y2KPP-6HMMcL74ZdbRU-t87FOa5H3G9NCtpg-yQfTDhmXw3RHHATUrUkXaoQn6EnrXLRnP65T9Dns-WnxXl28X71bvHmIlMiDZgJpjVQ4KrOWUkI4UJr3QpKjCCkrinL21bpAgwrNOGUl7yumlqUVal5VbbATtDLKe8--NshNS53NjbGOdUZP0RJK8YFg_xhsCQlg6L6H5DmDMoHQVJAQSt6BOcT2AQfYzCt3Ae7U2GUBORx5_LvnSecTvgP68z4T1auVx-W6ftIkrJJsrE3P-8kFW5kXrBCyM3VSr6tFusvZ-Kr5Il_MfHq23BH32vjN-6uxGc</recordid><startdate>200602</startdate><enddate>200602</enddate><creator>Wang, Alian</creator><creator>Korotev, Randy L.</creator><creator>Jolliff, Bradley L.</creator><creator>Haskin, Larry A.</creator><creator>Crumpler, Larry</creator><creator>Farrand, William H.</creator><creator>Herkenhoff, Ken E.</creator><creator>de Souza Jr, Paulo</creator><creator>Kusack, Alastair G.</creator><creator>Hurowitz, Joel A.</creator><creator>Tosca, Nicholas J.</creator><general>American Geophysical Union</general><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>H8D</scope><scope>7QF</scope><scope>JG9</scope></search><sort><creationdate>200602</creationdate><title>Evidence of phyllosilicates in Wooly Patch, an altered rock encountered at West Spur, Columbia Hills, by the Spirit rover in Gusev crater, Mars</title><author>Wang, Alian ; Korotev, Randy L. ; Jolliff, Bradley L. ; Haskin, Larry A. ; Crumpler, Larry ; Farrand, William H. ; Herkenhoff, Ken E. ; de Souza Jr, Paulo ; Kusack, Alastair G. ; Hurowitz, Joel A. ; Tosca, Nicholas J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5251-53dd0204ab63811145dddf521e511bb236ffad70e37d142484b9cb5898d498f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Composition of the planets</topic><topic>Geochemistry</topic><topic>Gusev</topic><topic>phyllosilicate</topic><topic>Planetary geochemistry</topic><topic>Spirit rover</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Alian</creatorcontrib><creatorcontrib>Korotev, Randy L.</creatorcontrib><creatorcontrib>Jolliff, Bradley L.</creatorcontrib><creatorcontrib>Haskin, Larry A.</creatorcontrib><creatorcontrib>Crumpler, Larry</creatorcontrib><creatorcontrib>Farrand, William H.</creatorcontrib><creatorcontrib>Herkenhoff, Ken E.</creatorcontrib><creatorcontrib>de Souza Jr, Paulo</creatorcontrib><creatorcontrib>Kusack, Alastair G.</creatorcontrib><creatorcontrib>Hurowitz, Joel A.</creatorcontrib><creatorcontrib>Tosca, Nicholas J.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Aerospace Database</collection><collection>Aluminium Industry Abstracts</collection><collection>Materials Research Database</collection><jtitle>Journal of Geophysical Research - Planets</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Alian</au><au>Korotev, Randy L.</au><au>Jolliff, Bradley L.</au><au>Haskin, Larry A.</au><au>Crumpler, Larry</au><au>Farrand, William H.</au><au>Herkenhoff, Ken E.</au><au>de Souza Jr, Paulo</au><au>Kusack, Alastair G.</au><au>Hurowitz, Joel A.</au><au>Tosca, Nicholas J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evidence of phyllosilicates in Wooly Patch, an altered rock encountered at West Spur, Columbia Hills, by the Spirit rover in Gusev crater, Mars</atitle><jtitle>Journal of Geophysical Research - Planets</jtitle><addtitle>J. Geophys. Res</addtitle><date>2006-02</date><risdate>2006</risdate><volume>111</volume><issue>E2</issue><spage>E02S16</spage><epage>n/a</epage><pages>E02S16-n/a</pages><issn>0148-0227</issn><eissn>2156-2202</eissn><abstract>On its traverse to Columbia Hills, the Mars Exploration Rover Spirit investigated an outcrop designated “Wooly Patch” that exhibited morphological, mineralogical, and geochemical characteristics at the extreme ends of ranges observed among rocks studied at West Spur, a westward projecting salient near the foot of the Columbia Hills, Gusev crater. The major‐element composition and Fe‐mineralogy, as determined by the Alpha‐Particle X‐ray Spectrometer and Mössbauer Spectrometer, are inconsistent with any reasonable assemblage of basaltic minerals in that there is an excess of Si and Al. The combined data are best explained by the presence of 14–17% phyllosilicate minerals. 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| source | Wiley Online Library - AutoHoldings Journals; Wiley Free Archive; Wiley-Blackwell AGU Digital Archive; Alma/SFX Local Collection |
| subjects | Composition of the planets Geochemistry Gusev phyllosilicate Planetary geochemistry Spirit rover |
| title | Evidence of phyllosilicates in Wooly Patch, an altered rock encountered at West Spur, Columbia Hills, by the Spirit rover in Gusev crater, Mars |
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