NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Collision of cometlike and slightly differentiated bodies as an origin for ordinary chondritesOne of the keys to understanding the origins of chondrites is given by the characteristics of relict minerals in chondrules that survived chondrule formation. Some of the relic materials show shock deformation textures, such as high dislocation densities in relict olivine and stacking faults in relict pyroxene. The textures suggest that shock deformation was the cause of melting of the chondrules. Some of the olivine and pyroxene fragments in the matrix of the chondrites have been shown to have a composition closer to the relict minerals than minerals crystallized during the chondrule formation. This suggests that some of the fragments originated from the precursor materials of the chondrules. A proposed origin for chondrites is discussed here along with supporting observations and conclusions.
Document ID
19950012893
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kitamura, M.
(Kyoto Univ. Japan)
Tsuchiyama, A.
(Osaka Univ. Toyonaka, Japan)
Date Acquired
September 6, 2013
Publication Date
January 1, 1994
Publication Information
Publication: Lunar and Planetary Inst., Papers Presented to the Conference on Chondrules and the Protoplanetary Disk
Subject Category
Astrophysics
Accession Number
95N19308
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available