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Dhofar 287
Basic information Name: Dhofar 287
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 287
Observed fall: No
Year found: 2001
Country: Oman
Mass:help 154 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Lunar
Meteoritical Bulletin:  MB 85  (2001)  Lunar (low-Ti, olivine-pyroxene mare basalt breccia)
MetBase:  v. 7.1  (2006)  Lunar (basalt)
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 16 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Writeuphelp
Writeup from MB 85:

Dhofar 287

Oman

Found 2001 January 14

Lunar meteorite (Low-Ti, olivine-pyroxene mare basalt breccia)

A dark gray, 154 g black stone without fusion crust was found in the Dhofar region of Oman, 400 m from Dhofar 025. Classification and mineralogy (M. Nazarov, Vernad; L. Taylor, UTenn): contains two adjacent lithologies, mare basalt (95 vol%) and regolith breccia (5 vol%). Basaltic portion consists of olivine (Fo70–45) and minor augite (Wo30–40 En38–45) phenocrysts (up to 1 mm) set in a subophitic, fine-grained (50–100 µm) groundmass composed of plagioclase (An85–75) and pyroxene (Wo10–25En2–50), with accessory pyroxferroite, K-Ba feldspar, apatite, ilmenite, Ti-rich chromite, ulvöspinel, baddeleyite, silica, tranquillityite, troilite, Fe-Ni metal, and a fayalite + K-rich glass mesostasis; shock veins and impact melt pockets are present; plagioclase is totally converted to maskelynite; mineral modes (vol%) are pyroxene = 49, maskelynite = 26, olivine = 18, opaques = 4, impact melt = 2; whole-rock TiO2 content = 2.8 wt%; Fe/Mn = 75 g/g; a prominent negative Eu anomaly is present; similar in composition to Apollo 12 mare basalts, but distinctly higher in Na and incompatible elements. Regolith breccia portion: clast-rich, with numerous lithic and mineral grains (up to 1 mm) cemented by fine­grained mineral fragments (<100 µm) and minor impact melt; dominated by low-Ti and VLT mare basalt lithologies; minor highland material is probably present; lithic clasts are fine-grained, vitrophyric, granular to ophitic, basaltic rocks and impact melt breccias; mineral fragments are dominated by pyroxene, olivine, and plagioclase; glass fragments and spherules also occur; plagioclase, An98–66; olivine, Fo80–25; pyroxenes are highly variable, Wo5–40En2–80; main accessories are silica, fayalite, pyroxferroite, K-rich glass, apatite, ilmenite, Ti-rich chromite, ulvöspinel, troilite, and FeNi metal. Specimens: 32 g and two thin sections, Vernad; main mass with anonymous finder.

Data from:
  MB85
  Table 1
  Line 185:
Date:14 Jan 2001
Latitude:18°24.2'N
Longitude:54°8.8'E
Mass (g):154
Pieces:1
Class:Lunar
Institutions
   and collections
UTenn: Planetary Geosciences Institute, Department of Earth and Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996-1410, United States (institutional address; updated 1 Nov 2011)
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 5 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 85, MAPS 36, A293-A322 (2001)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Labenne Meteorites   
Norbert Classen   
Randy Korotev   
Vernadsky Institute   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Doug R   
Jay Piatek   
Geography:

Oman
Coordinates:
     Catalogue of Meteorites:   (18° 24'N, 54° 9'E)
     Recommended::   (18° 24' 12"N, 54° 8' 48"E)
Note: the NHM and MetBase coordinates are 0.5 km apart

Statistics:
     This is 1 of 1811 approved meteorites from Zufar, Oman (plus 2 unapproved names)
     This is 1 of 3375 approved meteorites from Oman (plus 403 unapproved names)
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