Sources of Clasts in Terrestrial Impact Melts: Clues to the Origin of LKFM
Sources of Clasts in Terrestrial Impact Melts: Clues to the Origin of LKFM
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Date
1989
Authors
McCormick, K. A.
Taylor, G. Jeffrey, 1944-
Keil, Klaus
Spudis, Paul D.
Grieve, Richard A. F.
https://orcid.org/0000-0001-9471-3359
https://orcid.org/0000-0003-3391-0417
Journal Title
Journal ISSN
Volume Title
Publisher
Lunar and Planetary Institute
Abstract
Low-K Fra Mauro (LKFM) ''basalt," which is found exclusively as an impact melt rock, cannot be modeled geochemically from its clast population or from any combination of known pristine lunar rock types; there is a missing component enriched in both KREEP and transition metals (e.g., TI and Sc). To clarify clast/melt relationships, we studied impact melt rocks from Mistastin Lake crater, Labrador, Canada, where there are only three target rocks: anorthosite, quartz monzonite, and granodiorite.
Description
Keywords
Lunar surface samples,
Lunar petrology
Citation
Proceedings of the 19th Lunar and Planetary Science Conference, pp. 691-696 Copyright 1989, Lunar and Planetary Institute, Houston