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New Insights Into the Petrogenesis of Lunar Basaltic Breccia Meteorites from the Dominion Range (DOM) 18543

Schweitzer, Alex Ross
http://orcid.org/0009-0002-9630-8773
http://rave.ohiolink.edu/etdc/view?acc_num=miami168971183846541

Abstract Details

2023, Master of Science, Miami University, Geology and Environmental Earth Science.
Lunar meteorites have the potential to expand our knowledge of the Moon’s geological evolution and the processes which operate on differentiated objects in the inner Solar System. This study focuses on meteorite DOM 18543,9. DOM 18543,9 is a basaltic regolith breccia. Clasts within its glassy matrix include basalts, gabbros, and impact melt breccias. Mineral fragments include (clino)pyroxenes, olivines, and plagioclase, with trace oxides, sulfides, and phosphates. Melt veins up to 80μm wide and glass spherules (up to 400μm) are abundant. In addition, 3-phase symplectites composed of Fe-rich olivine, clinopyroxene, and silica occur. Pyroxenes are of augite and pigeonite compositions while olivines are dominantly fayalitic (up to Fa98.7). Plagioclase feldspars throughout the clasts and mineral fragments are predominantly anorthitic. Compared to Apollo basalts, DOM 18543,9 pyroxenes exhibit similar Mg/(Mg+Fe) vs Ti/(Ti+Cr) signatures to pyroxenes in Apollo 12 and 15 low-Ti basalts. Additionally, pyroxene CaO-MgO-FeO systematics are similar to those observed in Apollo 12, 15, and 17 basalts. Furthermore, the petrologic makeup of DOM 18543,9 (and inferred mare-related origin) may support a petrogenetic link to the YAMM meteorite suite and derivation from cryptomare around the Schiller-Schickard crater area on the Moon’s nearside.
Claire McLeod, Dr. (Advisor)
Mark Krekeler, Dr. (Committee Member)
Marion Lytle, Dr. (Committee Member)
85 p.
Geochemistry; Geology; Petrology
meteorite; lunar; geology; petrology; geochemistry; mineralogy; basalt; gabbro

Recommended Citations

Citations

  • Schweitzer, A. R. (2023). New Insights Into the Petrogenesis of Lunar Basaltic Breccia Meteorites from the Dominion Range (DOM) 18543 [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami168971183846541

    APA Style (7th edition)

  • Schweitzer, Alex. New Insights Into the Petrogenesis of Lunar Basaltic Breccia Meteorites from the Dominion Range (DOM) 18543. 2023. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami168971183846541.

    MLA Style (8th edition)

  • Schweitzer, Alex. "New Insights Into the Petrogenesis of Lunar Basaltic Breccia Meteorites from the Dominion Range (DOM) 18543." Master's thesis, Miami University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=miami168971183846541

    Chicago Manual of Style (17th edition)

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© 2023, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.