Dhofar 304, 305, 306 and 307: New Lunar Highland Meteorites from Oman
نویسندگان
چکیده
Introduction: Several lunar highland meteorites were found in the Dhofar region of Oman. Here we report the first data on the petrography and mineralogy of four new lunar stones, Dhofar 304, 305, 306 and 307. Dh-304 was found close to Dh-025 and 301, whereas Dh-305, 306 and 307 were recovered nearby Dh-081, 280, 302 and 303. The new meteorites are moderately weathered, impact-melt breccias. No KREEP or mare components are present in the rocks. Dh-304 may be paired with Dh-025 and 301. Dh-305, 306, and 307 are probably paired with Dh-302 and 303, but Dh-302 and 305 could represent different meteorite falls. However, these meteorites are definitely not related to Dh 081 and 280. Dhofar 304 is a brownish-gray, moderately weathered stone weighing 10 g. This is an impact-melt brec-cia in which mineral fragments and lithic clasts are embedded in a fine-grained impact-melt matrix. The lithic-clast population is dominated by impact-melt breccias, but possible igneous rocks and granulites are present too. The rocks have mostly anorthositic and gabbro-norithic compositions.
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