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Bullialdus - Strengthening the case for lunar plutonsAlthough many craters expose materials of a composition different from that of the local surroundings, Bullialdus has excavated material representing three distinct stratigraphic zones that occur in the upper 6 km of crust, the top two of which are gabbroic and the deepest of which is noritic. This three-component stratigraphy at Bullialdus provides strong evidence that the lunar crust includes pockets of compositionally layered material reminiscent of mafic layered plutons. When combined with previous information on the compositional diversity at other large craters, these remote analyses obtained in a geologic context substantially strengthen the hypothesis suggested from lunar samples that plutons play an integral role in lunar crustal evolution.
Document ID
19920030343
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pieters, Carle M.
(Brown University Providence, RI, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1991
Publication Information
Publication: Geophysical Research Letters
Volume: 18
ISSN: 0094-8276
Subject Category
Lunar And Planetary Exploration
Accession Number
92A12967
Funding Number(s)
CONTRACT_GRANT: NAGW-28
Distribution Limits
Public
Copyright
Other

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