The compositional classification of chondrites. V - The Karoonda (CK) group of carbonaceous chondrites

Details The compositional classification of chondrites. V - The Karoonda (CK) group of carbonaceous chondrites The compositional classification of chondrites. V - The Karoonda (CK) group of carbonaceous chondrites

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55..881k&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 55, March 1991, p. 881-892.

Computer Science

55

Carbonaceous Chondrites, Magnetite, Meteoritic Composition, Silicates, Sulfides, Antarctic Regions, Chondrites, Chondrule, Micrometeoroids, Neutron Activation Analysis, Petrography, Meteorites, Composition, Classification, Chondrites, Karoonda, Pairing, C5 Chondrites, Stony Meteorites, Description, C Chondrites, Petrography, Carbonaceous Chondrites, Comparisons, Nigqiang, Abundance, Lithophiles, Refractory Material, Siderophiles, Volatiles, Samples, Meteorite, Inaa, Laboratory Studies, Procedure, Neutron Ac

Scientific paper

In the Karoonda, or 'CK' group of carbonaceous chondrites, all normal members are metamorphosed and, while some contain shock veins, all exhibit various degrees of blackening due to fine sulfide and magnetite particle dispersions in silicates. The elemental abundance patterns in CK chondrites are similar to those in CO chondrites, and rather more similar to those in CV chondrites; CK refractory siderophile abundances are intermediate between CV and CO levels. The exceptional abundance of CK chondrites in Antarctica is accounted for in light of the fragmentation of the CK parent objects, which produced a greater proportion of small micrometeoroids.

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