Physics
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10...83s&link_type=abstract
Geophysical Research Letters, vol. 10, Jan. 1983, p. 83-86.
Physics
12
Anisotropy, Chondrites, Magnetic Permeability, Metamorphism (Geology), Meteoritic Composition, Porosity, Carbonaceous Chondrites, Correlation, Meteorite Collisions, Meteoritic Microstructures, Radioactive Age Determination, Shock Heating, Meteorites, Chrondrites, Porosity, Anisotropy, Magnetic Properties, Ages, Classification, E Chondrites, H Chrondrites, L Chondrites, Ll Chondrites, Comparisons, Metamorphism, Dating Techniques, Potassium, Argon, Impacts, Experiments, Data, Intensity, Petrology, Sources, Or
Scientific paper
The measured magnetic anisotropy and porosity of various chondrites are found to be inversely correlated when they are considered by class of chondrites (E, H and L + LL). For chondrites with similar porosities, the anisotropies for H and E chondrites are smaller than for L and LL chondrites, which have lower metal contents. The anisotropy and porosity are not dependent on the metamorphic grade of chondrites. K-Ar ages of strongly anisotropic and/or less porous chondrites are younger than those of less anisotropic and/or more porous chondrites. These observations suggest that impacts which reset the K-Ar ages produced the anisotropy and reduced the porosity of chondrites.
Strangway David W.
Sugiura Norimasa
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