Computer Science
Scientific paper
Oct 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009psrd.repte.139m&link_type=abstract
Planetary Science Research Discoveries
Computer Science
Kaidun, Meteorite, Breccia, Chondrite, Achondrite, C-Type Asteroid
Scientific paper
An unprecedented variety of chondritic and achondritic meteorite fragments make up the Kaidun meteorite. In a well-illustrated 2003 paper Michael Zolensky (NASA Johnson Space Center, Houston, Texas) and Andrei Ivanov (Vernadsky Institute, Moscow, Russia) summarize two decades of work on the complex, fragmental breccia, reviewing the types and origins of clasts present in Kaidun and theories for the origin of its parent body. Work on the stone continues and a recent report provides additional details of petrology, oxygen isotope chemistry, and trace element abundances by a group of Kaidun enthusiasts, including Glenn MacPherson (National Museum of Natural History, Smithsonian Institution) and colleagues from the Smithsonian, NASA Johnson Space Center, Purdue University, University of Chicago, and the Vernadsky Institute. Bulk Kaidun samples most closely resemble CR chondrites, but the matrix is more akin to CIs and the clast lithologies are of such disparate types that it is clear the fragments formed in many different bodies or conditions and assembled ultimately into the Kaidun parent body whose history cosmochemists are keen to unravel.
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