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Establishment of redox conditions during planetary collisions as an origin of chondritesCollisions between a 'cometlike' body (mixtures of chondritic materials and ice) and a slightly differentiated body were proposed for shock origin of ordinary chondrites. In this model, chondrules were formed with shock melting, and matrices were formed both by fracturing of materials and by recondensation of evaporated materials. This model can explain different redox conditions of chondrite formations by ice evaporation. Although this model was originally proposed for ordinary chondrites, we assume here that the model can be extended to chondrite formation in general. In this paper, redox conditions during chondrite formation by collisions will be discussed in the light of phase diagrams for solid-vapor equilibria.
Document ID
19950012916
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tsuchiyama, A.
(Osaka Univ. Toyonaka, Japan)
Kitamura, M.
(Kyoto Univ. 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
95N19331
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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