What Should We Looking for in Martian Meteorites? Is Evidence of Crustal Process or Mantle Process More Important...and to Whom?

Details What Should We Looking for in Martian Meteorites? Is Evidence of Crustal Process or Mantle Process More Important...and to Whom? What Should We Looking for in Martian Meteorites? Is Evidence of Crustal Process or Mantle Process More Important...and to Whom?

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002usnc.conf...11d&link_type=abstract

Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of the Martian Meteorites, p. 11-12

Mathematics

Logic

Dewatering, Mars (Planet), Snc Meteorites, Planetary Crusts, Earth Mantle, Oxygen, Abundance, Crystallization, Minerals, Oxidation-Reduction Reactions

Scientific paper

The "sampling" of Mars, both remotely and by meteorites, provides evidence for a range of reducing and oxidizing environments. Processes that modified the crust and mantle on Mars are clearly as diverse as those on the Earth with regard to oxygen fugacity. Increasingly compelling evidence for the presence of water in the near surface regime provides a potentially oxidizing near-surface environment, especially when coupled with increasing hydrogen loss from the planet through time. Dewatering of the mantle and the purported absence of global crust-mantle recycling perhaps accounts for the apparent reducing regime that dominates the source regions of many of the meteorite samples when compared to samples of the Earth's mantle.

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