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Identification, distribution and possible origins of sulfates in Capri Chasma (Mars), inferred from CRISM data
- Source :
- Journal of Geophysical Research. Planets, Journal of Geophysical Research. Planets, Wiley-Blackwell, 2010, 115, pp.E11007. ⟨10.1029/2009JE003566⟩, Journal of Geophysical Research. Planets, 2010, 115, pp.E11007. ⟨10.1029/2009JE003566⟩
- Publication Year :
- 2010
- Publisher :
- HAL CCSD, 2010.
-
Abstract
- International audience; CRISM is a hyperspectral imager onboard the Mars Reconnaissance Orbiter (MRO; NASA, 2005) which has been acquiring data since November 2006 and has targeted hydrated minerals previously detected by OMEGA (Mars Express; ESA, 2003). The present study focuses on hydrated minerals detected with CRISM at high spatial resolution in the vicinity of Capri Chasma, a canyon of the Valles Marineris system. CRISM data were processed and coupled with MRO and other spacecraft data, in particular HiRiSE (High Resolution Science Experiment, MRO) images. Detections revealed sulfates in abundance in Capri, especially linked to the interior layered deposits (ILD) that lie in the central part of the chasma. Both monohydrated and polyhydrated sulfates are found at different elevations and are associated with different layers. Monohydrated sulfates are widely detected over the massive light-toned cliffs of the ILD, whereas polyhydrated sulfates seem to form a basal and a top layer associated with lower-albedo deposits in flatter areas. Hydrated silicates (phyllosilicates or opaline silica) have also been detected very locally on two mounds about a few hundred meters in diameter at the bottom of the ILD cliffs. We suggest some formation models of these minerals that are consistent with our observations.
- Subjects :
- Atmospheric Science
010504 meteorology & atmospheric sciences
DRY
STRATIGRAPHY
Oceanography
01 natural sciences
Butte
law.invention
chemistry.chemical_compound
law
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry
HISTORY
Earth and Planetary Sciences (miscellaneous)
010303 astronomy & astrophysics
Water Science and Technology
Canyon
ALLES-MARINERIS
geography.geographical_feature_category
Surface materials and properties
Ecology
Forestry
Mars Exploration Program
Remote sensing
LAYERED DEPOSITS
Geophysics
Geology
SURFACE
[SDE.MCG]Environmental Sciences/Global Changes
Soil Science
Mineralogy
Mars
Aquatic Science
Orbiter
Geochemistry and Petrology
0103 physical sciences
GEOLOGY
SILICA
0105 earth and related environmental sciences
Earth-Surface Processes
geography
Mineral hydration
PLANUM
Paleontology
Silicate
CRISM
Planetary mineralogy and petrology
chemistry
Stratigraphy
13. Climate action
Space and Planetary Science
Subjects
Details
- Language :
- English
- ISSN :
- 21699097 and 21699100
- Database :
- OpenAIRE
- Journal :
- Journal of Geophysical Research. Planets, Journal of Geophysical Research. Planets, Wiley-Blackwell, 2010, 115, pp.E11007. ⟨10.1029/2009JE003566⟩, Journal of Geophysical Research. Planets, 2010, 115, pp.E11007. ⟨10.1029/2009JE003566⟩
- Accession number :
- edsair.doi.dedup.....1fe252b4c1d594fcc42e22cb8438cda2