Lunar Meteorite: Dhofar 1180

Oman



Dhofar 1180
(photo courtesy of Michael Farmer)


 
Closeup of sawn face of Dhofar 1180.
(photo courtesy of Michael Farmer)

Two small slices of Dhofar 1180 in the lab. Millimeter ticks for scale.
(photos by Randy Korotev)


Transmitted light photograph of a thin section from Dhofar 1180
(photo courtesy of Ted Bunch and Tony Irving)


It's compositionally unique
.
  

from The Meteoritical Bulletin, No. 91, Meteoritics & Planetary Science 42, A413–A466 (2007)

Dhofar 1180

Dhofar, Oman
Find: January 2005

Achondrite (lunar)

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 mass.


More Information

Meteoritical Bulletin Database

Dhofar 1180

Map

Schematic Map of the Find Locations of the Dhofar Lunar Meteorites

References

Bunch T. E., Wittke J. H., and Korotev R. L. (2006) Petrology and composition of lunar feldspathic breccias NWA 2995, Dhofar 1180 and Dhofar 1428 (abstract). 69th Annual Meeting of the Meteoritical Society, abstract no. 5254. Lunar and Planetary Institute, Houston.

Korotev R. L. (2011) Lunar meteorites from Antarctica and Oman (abstract). 74th Annual Meeting of the Meteoritical Society, abstract no. 5073. Lunar and Planetary Institute, Houston.

Korotev R. L. (2012) Lunar meteorites from Oman. Meteoritics & Planetary Science 47, 1365–1402. doi: 10.1111/j.1945-5100.2012.01393.x

Korotev R. L., Irving A. J., and Bunch T. E. (2008) Keeping up with the lunar meteorites – 2008 (abstract). In Lunar and Planetary Science XXXIX, abstract no. 1209, 39th Lunar and Planetary Science Conference, Houston.

Korotev R. L. and Zeigler R. A. (2007) Keeping up with the lunar meteorites (abstract). In Lunar and Planetary Science XXXVIII, abstract no. 1340, Lunar and Planetary Institute, Houston.

Korotev R. L, Zeigler R. A., Jolliff B. L., Irving A. J., and Bunch T. E. (2009) Compositional and lithological diversity among brecciated lunar meteorites of intermediate iron composition. Meteoritics & Planetary Science 44, 1287–1322.

Robinson K. L., Treiman A. H., and Joy J. H. (2012) Basaltic fragments in lunar feldspathic meteorites: Connecting sample analyses to orbital remote sensing. Meteoritics & Planetary Science 43, 387–399.

Zhang A. and Hsu W. (2006) Petrographic and mineralogical studies of the lunar meteorite Dhofar 1180 (abstract). 69th Annual Meeting of the Meteoritical Society, abstract no. 5170. Lunar and Planetary Institute, Houston.

Zhang A. and Hsu W. (2007) A KREEP clast in the lunar meteorite Dhofar 1180 (abstract). In Lunar and Planetary Science XXXVIII, abstract no. 1108, Lunar and Planetary Institute, Houston.

Zhang A. and Hsu W. (2009) Petrography, mineralogy, and trace element geochemistry of lunar meteorite Dhofar 1180. Meteoritics & Planetary Science 44, 1265–1286.



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Prepared by:

Randy L. Korotev


Department of Earth and Planetary Sciences
Washington University in St. Louis


Please don't contact me about the meteorite you think you've found until you read this and this.

e-mailkorotev@wustl.edu

Last revised: 04-Mar-2014