File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Phyllosilicate diversity and past aqueous activity revealed at Mawrth Vallis, Mars

TitlePhyllosilicate diversity and past aqueous activity revealed at Mawrth Vallis, Mars
Authors
Issue Date2008
Citation
Science, 2008, v. 321, n. 5890, p. 830-833 How to Cite?
AbstractObservations by the Mars Reconnaissance Orbiter/Compact Reconnaissance Imaging Spectrometer for Mars in the Mawrth Vallis region show several phyllosilicate species, indicating a wide range of past aqueous activity. Iron/magnesium (Fe/Mg)-smectite is observed in light-toned outcrops that probably formed via aqueous alteration of basalt of the ancient cratered terrain. This unit is overlain by rocks rich in hydrated silica, montmorillonite, and kaolinite that may have formed via subsequent leaching of Fe and Mg through extended aqueous events or a change in aqueous chemistry. A spectral feature attributed to an Fe2+ phase is present in many locations in the Mawrth Vallis region at the transition from Fe/Mg-smectite to aluminum/silicon (Al/Si)-rich units. Fe2+-bearing materials in terrestrial sediments are typically associated with microorganisms or changes in pH or cations and could be explained here by hydrothermal activity. The stratigraphy of Fe/Mg-smectite overlain by a ferrous phase, hydrated silica, and then Al-phyllosilicates implies a complex aqueous history.
Persistent Identifierhttp://hdl.handle.net/10722/236649
ISSN
2023 Impact Factor: 44.7
2023 SCImago Journal Rankings: 11.902
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBishop, Janice L.-
dc.contributor.authorDobrea, Eldar Z Noe-
dc.contributor.authorMcKeown, Nancy K.-
dc.contributor.authorParente, Mario-
dc.contributor.authorEhlmann, Bethany L.-
dc.contributor.authorMichalski, Joseph R.-
dc.contributor.authorMilliken, Ralph E.-
dc.contributor.authorPoulet, Francois-
dc.contributor.authorSwayze, Gregg A.-
dc.contributor.authorMustard, John F.-
dc.contributor.authorMurchie, Scott L.-
dc.contributor.authorBibring, Jean Pierre-
dc.date.accessioned2016-12-01T09:08:30Z-
dc.date.available2016-12-01T09:08:30Z-
dc.date.issued2008-
dc.identifier.citationScience, 2008, v. 321, n. 5890, p. 830-833-
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/10722/236649-
dc.description.abstractObservations by the Mars Reconnaissance Orbiter/Compact Reconnaissance Imaging Spectrometer for Mars in the Mawrth Vallis region show several phyllosilicate species, indicating a wide range of past aqueous activity. Iron/magnesium (Fe/Mg)-smectite is observed in light-toned outcrops that probably formed via aqueous alteration of basalt of the ancient cratered terrain. This unit is overlain by rocks rich in hydrated silica, montmorillonite, and kaolinite that may have formed via subsequent leaching of Fe and Mg through extended aqueous events or a change in aqueous chemistry. A spectral feature attributed to an Fe2+ phase is present in many locations in the Mawrth Vallis region at the transition from Fe/Mg-smectite to aluminum/silicon (Al/Si)-rich units. Fe2+-bearing materials in terrestrial sediments are typically associated with microorganisms or changes in pH or cations and could be explained here by hydrothermal activity. The stratigraphy of Fe/Mg-smectite overlain by a ferrous phase, hydrated silica, and then Al-phyllosilicates implies a complex aqueous history.-
dc.languageeng-
dc.relation.ispartofScience-
dc.titlePhyllosilicate diversity and past aqueous activity revealed at Mawrth Vallis, Mars-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1126/science.1159699-
dc.identifier.pmid18687963-
dc.identifier.scopuseid_2-s2.0-49449102091-
dc.identifier.volume321-
dc.identifier.issue5890-
dc.identifier.spage830-
dc.identifier.epage833-
dc.identifier.eissn1095-9203-
dc.identifier.isiWOS:000258261000044-
dc.identifier.issnl0036-8075-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats