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The competition between thermal contraction and differentiation in the stress history of the moonThe stress history of the moon is discussed, taking into consideration the effects of thermal contraction and differentiation. The amount of expansion caused by extracting basalt from undifferentiated lunar material is estimated taking account of the uncertainty in the knowledge of the appropriate compositions, and the resulting estimate of the expansion is used to compare the relative importance of the thermal and differentiation effects in the moon's volumetric history. The results of calculations show that differentiation is likely to be of major importance and, thus, thermal expansion is not the sole possible contributor to evolutionary changes in the lunar radius.
Document ID
19890067295
Document Type
Reprint (Version printed in journal)
Authors
Kirk, Randolph L. (California Inst. of Tech. Pasadena, CA, United States)
Stevenson, David J. (California Institute of Technology Pasadena, United States)
Date Acquired
August 14, 2013
Publication Date
September 10, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
LUNAR AND PLANETARY EXPLORATION
Funding Number(s)
CONTRACT_GRANT: NAGW-185
Distribution Limits
Public
Copyright
Other