|from The Meteoritical Bulletin, No. 91
History: M. Farmer recovered a specimen in the Dhofar region of Oman.
Physical characteristics: The 115.2 g meteorite has an odd external shape akin to a thick-bladed talon.
Petrography: (T. Bunch and J. Wittke, NAU) The sample is a feldspathic fragmental breccia that contains a variety of lithologies set in matrix of similar materials with a preferred orientation of fragments and clasts. Mostly ferroan anorthosites with clasts of gabbroic anorthosites, anorthositic gabbros and norites, troctolites, olivine gabbros, microporphyritic and fine-grained impact-melt breccias, and rare, ophitic/subophitic basalts and symplectites of unknown provenance.
Mineral compositions and geochemistry: Anorthositic plagioclase (An94.5–98; FeO = 0.28–0.78 wt%); olivines (FeO/ MnO = 82–110), ferroan anorthosite (Fa38), norite (Fa18), olivine gabbro (Fa36.8); orthopyroxenes (FeO/MnO = 50–73), ferroan anorthosite (Fs38.6Wo2.1), olivine gabbro (Fs33.4Wo4.3), ophitic basalt core (Fs40Wo11.8) and rim (Fs69.1Wo15.8).
Classification: Achondrite (lunar, feldspathic fragmental breccia). Minimal weathering.
Type specimen: A 20.6 g sample is on deposit at NAU. Farmer and Strope hold the main massstyle=”font-family: inherit; font-size: 0.866667em;”>.
Compositionally, Dhofar 1180 is unique and one of the most mafic among nominally feldspathic lunar meteorites.
Meteoritical Bulletin Database
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Korotev R. L. (2011) Lunar meteorites from Antarctica and Oman. 74th Annual Meeting of the Meteoritical Society, abstract no. 5073.
Korotev R. L. (2012) Lunar meteorites from Oman. Meteoritics & Planetary Science 47, 1365-1402.
Korotev R. L. (2017) Update (2012–2017) on lunar meteorites from Oman. Meteoritics & Planetary Science 52, 1251-1256.
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Zhang A. and Hsu W. (2006) Petrographic and mineralogical studies of the lunar meteorite Dhofar 1180. 69th Annual Meeting of the Meteoritical Society, abstract no. 5170.
Zhang A. and Hsu W. (2007) A KREEP clast in the lunar meteorite Dhofar 1180. Lunar and Planetary Science XXXVIII, abstract no. 1108.
Zhang A. and Hsu W. (2009) Petrography, mineralogy, and trace element geochemistry of lunar meteorite Dhofar 1180. Meteoritics & Planetary Science 44, 1265-1286.