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Asteroid differentiation - Pyroclastic volcanism to magma oceansA summary is presented of theoretical and speculative research on the physics of igneous processes involved in asteroid differentiation. Partial melting processes, melt migration, and their products are discussed and explosive volcanism is described. Evidence for the existence of asteroidal magma oceans is considered and processes which may have occurred in these oceans are examined. Synthesis and inferences of asteroid heat sources are discussed under the assumption that asteroids are heated mainly by internal processes and that the role of impact heating is small. Inferences of these results for earth-forming planetesimals are suggested.
Document ID
19930055808
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Taylor, G. J.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Keil, Klaus
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Mccoy, Timothy
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Haack, Henning
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Scott, Edward R. D.
(Hawaii Univ. at Manoa, Honolulu, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Meteoritics
Volume: 28
Issue: 1
ISSN: 0026-1114
Subject Category
Lunar And Planetary Exploration
Accession Number
93A39805
Funding Number(s)
CONTRACT_GRANT: NAG9-454
CONTRACT_GRANT: NAGW-3281
Distribution Limits
Public
Copyright
Other

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