Weathered stony meteorites from Victoria Land, Antarctica, as possible guides to rock weathering on Mars

Details Weathered stony meteorites from Victoria Land, Antarctica, as possible guides to rock weathering on Mars Weathered stony meteorites from Victoria Land, Antarctica, as possible guides to rock weathering on Mars

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept..216g&link_type=abstract

In NASA. Washington Repts. of Planetary Geol. Program p 216-218 (SEE N84-23431 13-91)

Mathematics

Logic

Antarctic Regions, Mars (Planet), Mars Surface, Meteorites, Rocks, Weathering, Analogs, Cratering, Earth (Planet), Lava, Lithology, Planetary Temperature, Rusting

Scientific paper

Parallel studies of Martian geomorphic features and their analogs on Earth continue to be fruitful in deciphering the geologic history of Mars. In the context of rock weathering, the Earth-analog approach is admirably served by the study of meteorites recovered from ice sheets in Antarctica. The weathering environment of Victoria Land possesses several Mars-like attributes. Four of the five Antarctic meteorites being studied contain rust and EETA79005 further possesses a conspicuous, dark, weathering rind on one side. Secondary minerals (rust and salts) occur both on the surfaces and interiors of some of the samples and textural evidence indicates that such secondary mineralization contributed to physical weathering (by salt riving) of the rocks. Several different rust morphologies occur and emphasis is being placed on identifying the phase compositions of the various rust occurrances. A thorough understanding of terrestrial weathering features of the meteorites is a prerequisite for identifying possible Martian weathering features (if such features exist) that might be postulated to occur in some meteorites.

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