Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data
Abstract The ~100 m wide Marathon Valley crosscuts the Cape Tribulation rim segment of the 22 km diameter, Noachian‐age Endeavour impact crater on Mars. Single‐scattering albedo spectra retrieved from three Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) Full‐Resolution Targeted (FRT, r...
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| Format: | Article |
| Language: | English |
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Wiley
2016-05-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1002/2016GL069108 |
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| author | V. K. Fox R. E. Arvidson E. A. Guinness S. M. McLennan J. G. Catalano S. L. Murchie K. E. Powell |
| author_facet | V. K. Fox R. E. Arvidson E. A. Guinness S. M. McLennan J. G. Catalano S. L. Murchie K. E. Powell |
| author_sort | V. K. Fox |
| collection | DOAJ |
| description | Abstract The ~100 m wide Marathon Valley crosscuts the Cape Tribulation rim segment of the 22 km diameter, Noachian‐age Endeavour impact crater on Mars. Single‐scattering albedo spectra retrieved from three Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) Full‐Resolution Targeted (FRT, regularized to 18 m/pixel) and two Along Track Oversampled (ATO, regularized to 12 m/pixel) observations indicate the presence of Fe3+‐Mg2+ smectite exposures located in Marathon Valley with combination vibration metal‐OH absorption strength comparable to smectite spectral signatures in Mawrth Vallis. The Opportunity rover was directed to the exposures and documented the presence of Shoemaker formation impact breccias that have been isochemically altered, likely by fracture‐controlled aqueous fluids. |
| format | Article |
| id | doaj-art-cb78abd199b744489ee6e5aa7b8b5ed2 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2016-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-cb78abd199b744489ee6e5aa7b8b5ed22025-08-20T01:51:46ZengWileyGeophysical Research Letters0094-82761944-80072016-05-0143104885489210.1002/2016GL069108Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance dataV. K. Fox0R. E. Arvidson1E. A. Guinness2S. M. McLennan3J. G. Catalano4S. L. Murchie5K. E. Powell6Department of Earth and Planetary Sciences Washington University in St. Louis St. Louis Missouri USADepartment of Earth and Planetary Sciences Washington University in St. Louis St. Louis Missouri USADepartment of Earth and Planetary Sciences Washington University in St. Louis St. Louis Missouri USADepartment of Geosciences Stony Brook University Stony Brook New York USADepartment of Earth and Planetary Sciences Washington University in St. Louis St. Louis Missouri USAApplied Physics Laboratory The Johns Hopkins University Laurel Maryland USADepartment of Earth and Planetary Sciences Washington University in St. Louis St. Louis Missouri USAAbstract The ~100 m wide Marathon Valley crosscuts the Cape Tribulation rim segment of the 22 km diameter, Noachian‐age Endeavour impact crater on Mars. Single‐scattering albedo spectra retrieved from three Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) Full‐Resolution Targeted (FRT, regularized to 18 m/pixel) and two Along Track Oversampled (ATO, regularized to 12 m/pixel) observations indicate the presence of Fe3+‐Mg2+ smectite exposures located in Marathon Valley with combination vibration metal‐OH absorption strength comparable to smectite spectral signatures in Mawrth Vallis. The Opportunity rover was directed to the exposures and documented the presence of Shoemaker formation impact breccias that have been isochemically altered, likely by fracture‐controlled aqueous fluids.https://doi.org/10.1002/2016GL069108Marsphyllosilicatessmectites |
| spellingShingle | V. K. Fox R. E. Arvidson E. A. Guinness S. M. McLennan J. G. Catalano S. L. Murchie K. E. Powell Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data Geophysical Research Letters Mars phyllosilicates smectites |
| title | Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data |
| title_full | Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data |
| title_fullStr | Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data |
| title_full_unstemmed | Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data |
| title_short | Smectite deposits in Marathon Valley, Endeavour Crater, Mars, identified using CRISM hyperspectral reflectance data |
| title_sort | smectite deposits in marathon valley endeavour crater mars identified using crism hyperspectral reflectance data |
| topic | Mars phyllosilicates smectites |
| url | https://doi.org/10.1002/2016GL069108 |
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