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Dhofar 1626
Basic information Name: Dhofar 1626
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 1626
Observed fall: No
Year found: 2006
Country: Oman
Mass:help 223 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Eucrite-an
Recommended:  Eucrite-an    [explanation]

This is 1 of 9 approved meteorites classified as Eucrite-an.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 26 Sep 2011
Writeuphelp
Writeup from MB 100:

Dhofar 1626 (Dho 1626)        18°18.69’N, 54°07.70’E

Zufar, Oman

Found: 2006 Oct 2

Classification: HED achondrite (Eucrite, anomalous)

History: The meteorite was found by anonymous collector in the Dhofar region of Oman in 2006.

Physical characteristics: An 223 g individual, with potato-like shape. Surface of the stone is patchy brown and lacks fusion crust.

Petrography: (C.A. Lorenz, Vernad) Unbrecciated, achondritic, with igneous texture. 90 vol% anorthosite. Locally, the anorthosite is grades to gabbro (10 vol%) as a result of increasing abundance of pyroxene and decrease in size of plagioclase crystals. Thickness of transitional zone between anorthosite and gabbro is ~ 5 mm. The anorthosite has coarse-grained (to 2 cm) texture and consists of feldspar (>99 vol%), with poikilitic and interstitial inclusions of pyroxene. Rare minerals are silica, chromite and troilite. The gabbro has coarse-grained (up to 1 mm) granular texture and consists of pyroxene and feldspar with accessory silica and troilite. Pyroxene has rare exolution lamellae.

Geochemistry: (N.N. Kononkova, Vernad, EMP) Anorthosite: feldspar An95Ab5; pyroxene En64Wo3 (Fe/Mn = 26), En44Wo42; Gabbro: feldspar An96Ab4; pyroxene En61Wo3 (Fe/Mn = 23), En41Wo43. Oxygen isotopic composition (I. Franchi, R. Greenwood, OU, laser fluorination, ‰): δ17O 1.808; δ18O 3.889; Δ17O -0.214 per mil.

Classification: Eucrite-anomalous. The mineral chemistry and oxygen isotopic composition suggest that this anorthosite-dominated meteorite is related to the HEDs.

Specimens: A total of 42.4 g sample and one thin polished section are on deposit at Vernad. DMUH holds the main mass.

Data from:
  MB100
  Table 1
  Line 109:
State/Prov/County:Zufar
Date:2006 Oct 2
Latitude:18°18.69'N
Longitude:54°07.70'E
Mass (g):223
Pieces:1
Class:Eucrite-an
Classifier:C. A. Lorenz, Vernad
Type spec mass (g):42.4
Type spec location:Vernad
Main mass:DMUH
Comments:Submitted by C. A. Lorenz
Plots: O isotopes:  
Institutions
   and collections
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
DMUH: Dedovsk Museum of Universe History, Russia; Website (institutional address; updated 26 Sep 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Geography:

Oman
Coordinates:
     Recommended::   (18° 18' 41"N, 54° 7' 42"E)

Statistics:
     This is 1 of 2119 approved meteorites from Zufar, Oman (plus 4 unapproved names)
     This is 1 of 3944 approved meteorites from Oman (plus 371 unapproved names)
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