Physics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.4629b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. B4, April 10, 1992, p. 4629-4647.
Physics
14
Chondrites, Ice Environments, Meteoritic Composition, Thermoluminescence, Aerial Photography, Cliffs, Data Reduction
Scientific paper
Results of natural thermoluminescence (TL) measurements of 302 meteorites from the vicinity of the Lewis Cliff in the Beardmore region of Antarctica are presented in order to identify fragments of a single fall and to elucidate ice sheet movements and the mechanisms by which meteorite concentration occurs at this site. From the distribution of meteorites on the ice, the shape of the fields of 'paired' meteorites, and trends in the natural TL data, it is inferred that there is a western component to the movement of the ice at this location, as well as the previously supposed movement to the north. The western vector explains the concentration of meteorites along the western edge of the ice tongue. These new natural TL data identify several recent falls and several meteorites which probably had unusually small perihelia immediately prior to capture by the earth.
Benoit Paul H.
Sears Derek W. G.
Sears Hazel
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