Mathematics – Logic
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jgre..11306s22s&link_type=abstract
Journal of Geophysical Research, Volume 113, Issue E6, CiteID E06S22
Mathematics
Logic
22
Planetary Sciences: Solar System Objects: Meteorites And Tektites (1028, 3662), Planetary Sciences: Solar System Objects: Mars, Geochemistry: Composition Of Meteorites (3662, 6240), Mineralogy And Petrology: Meteorite Mineralogy And Petrology (1028, 6240)
Scientific paper
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 recognized as ``Meridiani Planum.'' Barberton is olivine-rich and contains metallic Fe in the form of kamacite, suggesting a meteoritic origin. It is chemically most consistent with a mesosiderite silicate clast. Santa Catarina is a brecciated rock with a chemical and mineralogical composition similar to Barberton. Barberton, Santa Catarina, and cobbles adjacent to Santa Catarina may be part of a strewn field. Spirit observed two probable iron meteorites from its Winter Haven location in the Columbia Hills in Gusev Crater. Chondrites have not been identified to date, which may be a result of their lower strengths and probability to survive impact at current atmospheric pressures. Impact craters directly associated with Heat Shield Rock, Barberton, or Santa Catarina have not been observed, but such craters could have been erased by eolian-driven erosion.
Ashley James W.
de Souza Paulo A.
Economou Thanasis
Farrand William H.
Fleischer Iris
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