Origin of Rocks and Cobbles on the Meridiani Plains as Seen by Opportunity
نویسندگان
چکیده
OPPORTUNITY. B. L. Jolliff, W. H. Farrand, J. R. Johnson, C. Schröder, C. M. Weitz, and the Athena Science Team. Department of Earth and Planetary Sciences and the McDonnell Center for the Space Sciences, Washington University, St. Louis, MO 63130 ([email protected]), Space Science Institute, 4750 Walnut St. #205, Boulder, CO 80301, U.S. Geological Survey, 2255 N. Gemini Dr., Flagstaff, AZ 86001, Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-Universität, Mainz, Germany; Planetary Science Institute, Tucson, AZ 85719.
منابع مشابه
Characterization of Rock Types at Meridiani Planum, Mars Using Mer 13-filter Pancam Spectra
Introduction: The Mars Exploration Rover Opportunity has traversed more than 13 km across Meridiani Planum, finding evidence of ancient aqueous environments that, in the past, may have been suitable for life. Meridiani bedrock along the rover traverse is a mixture in composition and bulk mineralogy between a sulfate-rich sedimentary rock and hematite spherules (" blueberries ") [1]. On top of t...
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One of the reasons for selecting Meridiani Planum as one of the two landing sites for the MER (Mars Exploration Rover) mission was the detection of a hematite signature by the TES (Thermal Emission Spectrometer) instrument onboard MGS (Mars Global surveyor) [1]. The presence of hematite at Meridiani has since been confirmed by instruments of the Athena Science Payload of the Opportunity MER rov...
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[1] The !5 km of traverses and observations completed by the Opportunity rover from Endurance crater to the Fruitbasket outcrop show that the Meridiani plains consist of sulfate-rich sedimentary rocks that are largely covered by poorly-sorted basaltic aeolian sands and a lag of granule-sized hematitic concretions. Orbital reflectance spectra obtained by Mars Express OMEGA over this region are d...
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[1] Reduced weathering rates due to the lack of liquid water and significantly greater typical surface ages should result in a higher density of meteorites on the surface of Mars compared to Earth. Several meteorites were identified among the rocks investigated during Opportunity’s traverse across the sandy Meridiani plains. Heat Shield Rock is a IAB iron meteorite and has been officially recog...
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تاریخ انتشار 2006