Document
Petrography and geochemistry of lunar meteorites Dhofar 1673, 1983, and 1984.
Identifier
DOI: 10.1111/maps.13207
Source
Meteoritics and Planetary Science. v. 54, 2, p. 300-320
Contributors
Osinski, Gordon R., Author
Banerjee, Neil R. , Author
Korotev, Randy L. , Author
Nasir, Sobhi J. , Author
Herd, Christopher D. K. , Author
Country
United States.
Publisher
University of Arkansas.
Gregorian
2019-02-01
Language
English
English abstract
The Dhofar 1673, Dhofar 1983, and Dhofar 1984 meteorites are three lunar regolith breccias classified based on their petrography, mineralogy, oxygen isotopes, and bulk chemistry. All three meteorites are dominated by feldspathic lithic clasts; however, impact melt rock clasts and spherules are also found in each meteorite. The bulk chemistry of these samples is similar to other feldspathic highland meteorites with the Al2O3 content only slightly lower than average. Within the lithic clasts, the Mg # of mafic phases versus the anorthite content of feldspars is similar to other highland meteorites and is found to plot intermediate of the ferroan-anorthositic suite and magnesian suite. The samples lack any KREEPy signature and have only minor indications of a mare basalt component, suggesting that the source region of all three meteorites would have been distal from the Procellarum KREEP Terrane and could have possibly been the Feldspathic Highland Terrane. All three meteorites were found within 500 m of each other in the Dhofar region of Oman. This, together with their similar petrography, stable isotope chemistry, and geochemistry indicates the possibility of a pairing.
ISSN
1086-9379
Category
Journal articles