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Compositional variations of olivines and pyroxenes in chondritic interplanetary dust particlesIt is commonly held that hydrated interplanetary dust particles (IDP's) experienced aqueous alteration on hydrous asteroids, while the anhydrous IDP's could be derived from the more primitive asteroids and comets. We wish to discover whether the anhydrous IDPs are actually from the same parent body, being related by aqueous alteration of one to produce the other. We report here analyses of olivines and pyroxenes, and petrofabrics of 27 chondritic IDP's, comparing those from anhydrous and hydrous types. Based on mineralogical evidence, we find that hydrous and anhydrous IDP's are, in general, not directly related.
Document ID
19950004557
Document Type
Conference Paper
Authors
Zolensky, Michael E. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Barrett, Ruth (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1994
Publication Information
Publication: Lunar and Planetary Inst., Workshop on the Analysis of Interplanetary Dust Particles
Subject Category
ASTROPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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