Mathematics – Logic
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..183b&link_type=abstract
In Lunar and Planetary Inst., Twenty-fourth Lunar and Planetary Science Conference. Part 1: A-F p 183-184 (SEE N94-12015 01-91)
Mathematics
Logic
1
Breccia, Carbonaceous Chondrites, Chemical Analysis, Kapoeta Achondrite, Meteoritic Composition, Mineralogy, Petrology, Electron Probes, Fineness, Particle Size Distribution, Regolith, Scanning Electron Microscopy
Scientific paper
A petrographic and mineralogical study of a number of carbonaceous chondrite clasts in the Kapoeta howardite has been carried out. Most of the clasts have mineralogical and chemical properties which link them to the CM carbonaceous chondrites. Some clasts contain chondrules which often have well-developed fine-grained rims, but many have been extensively brecciated. PCP-rich objects are common and pentlandite and pyrrhotite also occur. Calcite has also been found. The remainder of the clasts are extremely fine-grained and appear to be closely related to CI carbonaceous chondrites. In these clasts magnetite framboids are common and finegrained sulfides and magnetite occur disseminated throughout the matrix.
Brearley Adrian J.
Papike James J.
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