Meteoritical Bulletin: Entry for Dhofar 1269

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Dhofar 1269

Basic information

Name: Dhofar 1269
This is an OFFICIAL meteorite name.
Abbreviation: Dho 1269
Observed fall: No
Year found: 2005
Country: Oman
Mass: 42 g

Classification
history:

Meteoritical Bulletin:	MB 93	(2008)	Diogenite-pm
Recommended:			Diogenite-pm [explanation]

This is 1 of 63 approved meteorites classified as Diogenite-pm. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 14 Jan 2008
Revised 4 Aug 2008: final writeup

Writeup

help

Writeup from MB 93:

Dhofar 1269 18°43'53''N, 54°30'33''E

Dhofar, Oman

Find: 4 March 2005

Achondrite (diogenite, polymict breccia)

History and Physical characteristics: A dark brown, 42 g stone was found in the Dhofar region of the Sultanate of Oman by E. Olson on March 4, 2005.

Petrography: (T. Bunch and J. Wittke, NAU) A polymict breccia that contains two distinct lithologies: a) coarse-grained orthopyroxene (< 5 mm fragment size), plagioclase, and chromite. b) Partially brecciated gabbro (olivine orthopyroxenite) containing cumulate olivine + orthopyroxene + chromite with plentiful inclusions of FeS. Modal analyses of lithology B made on 4 clasts (vol%): orthopyroxene = 48-65, olivine = 31-49, FeS = 3-5 and chromite = 1.

Mineral compositions and Geochemistry: Lithology A: orthopyroxene (Fs_21.9Wo_2.8; FeO/MnO = 30, chromite (Cr/(Cr + Al) = 70). Lithology B: orthopyroxene (Fs_23.8Wo_3.2; FeO/ MnO = 29), olivine (Fa_29.1; FeO/MnO = 48), chromite (Cr/(Cr + Al) = 53), FeS (contains 0.45 wt% Zn and 0.38 wt% Ti), metal (2.8 wt% Ni).

Classification: Achondrite (diogenite, polymict breccia); minimal shock and weathering.

Type specimens: An 8.4 g sample is on deposit at NAU. Olson holds the main mass.

Submitted by: Ted Bunch, NAU.

Data from:
  MB93
  Table 8
  Line 35:

Origin or pseudonym:	Oman, desert plain
Date:	4-Mar-2005
Latitude:	18°43'53"N
Longitude:	54°30'33"E
Mass (g):	42
Pieces:	1
Class:	DIO
Shock stage:	moderate
Weathering grade:	minimal
Type spec mass (g):	8.4

Institutions
and collections

NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)

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Geography:

Oman

Oman

Coordinates:
Recommended::	(18° 43' 53"N, 54° 30' 33"E)

Statistics:
This is 1 of 2167 approved meteorites from Zufar, Oman (plus 26 unapproved names)
This is 1 of 3998 approved meteorites from Oman (plus 441 unapproved names)

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Revision
history:

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