Are there real differences between Antarctic finds and modern falls meteorites?

Details Are there real differences between Antarctic finds and modern falls meteorites? Are there real differences between Antarctic finds and modern falls meteorites?

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55...99c&link_type=abstract

(Workshop on Differences between Antarctic and non-Antarctic Meteorites, Vienna, Austria, July 27, 28, 1989) Geochimica et Cosmo

Computer Science

3

Antarctic Regions, Chondrites, Meteoritic Composition, Weathering, Achondrites, Carbonaceous Chondrites, Mass Distribution, Stony Meteorites, Wind Effects, Meteorites, Antarctic Meteorites, Comparisons, Mass, Models, Weathering, Stony Meteorites, Abundance, Distribution, Transport, Iron Meteorites, Achondrites, Chondrites, Stony Iron Meteorites, Carbonaceous Chondrites, Sampling, Samples, Meteorite

Scientific paper

Recent reports of differences between Antarctic and non-Antarctic meteorite collections include some based on mass frequency distributions and relative abundances of types. Using the modern falls of Harvey and Cassidy (1989) as a model of what a meteorite collection free of postfall processing should be like, the relative abundance of different types of stony meteorites for the Antarctic finds and the modern falls are compared. Reconstructing the Antarctic mass-frequency distributions using a model based on field observations of Antarctic meteorite loss due to weathering, wind transport, and search inefficiencies, an idealized Antarctic meteorite mass frequency distribution that is identical in shape (essentially lognormal) to the modern falls is developed. Using this model, no difference between the Antarctic finds and modern falls, within reasonable estimates of error, is found.

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