Meteoritical Bulletin: Entry for Dhofar 622

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Dhofar 622

Basic information

Name: Dhofar 622
This is an OFFICIAL meteorite name.
Abbreviation: Dho 622
Observed fall: No
Year found: 2001
Country: Oman
Mass: 60 g

Classification
history:

Meteoritical Bulletin:	MB 87	(2003)	H4-an
MetBase:	v. 7.1	(2006)	H4-an
Recommended:			H4-an [explanation]

This is 1 of 24 approved meteorites classified as H4-an. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Writeup

Writeup from MB 87:

Dhofar 622

Oman

Found 2001 January 15

Ordinary chondrite (H4, anomalous)

The sample (working and find number: OM 1.01–24) was found as a single fragment of 60 g in the Dhofar region. Mineralogy and classification (A. Bischoff and A. Sokol, Mün): Although the chemical analyses of olivine (Fa18.5) and pyroxene (Fs16.8 ± 1.2) are similar to those of H-chondrites, this rock is not a typical H-chondrite, and consists of much more matrix than typical ordinary chondrites. R.N. Clayton (UChi) states that Dhofar 622 “has a lower ∆¹⁷O than any ordinary chondrite we have measured (typical H-chondrites have ∆¹⁷O = +0.7).” The oxygen isotope data are: δ¹⁸O = +5.15; δ¹⁷O = +2.92; ∆¹⁷O = +0.25‰. The meteorite is very weakly shocked (S2) and moderately to heavily weathered (W3-4). Specimens: main mass with anonymous finder; thin sections and type specimen, 12 g, Mün.

Data from:
  MB87
  Table 4
  Line 132:

Date:	15 Jan 2001
Latitude:	19°13.672'N
Longitude:	54°51.221'E
Mass (g):	60
Pieces:	1
Class:	H4-an
Shock stage:	S2
Weathering grade:	W3-4
Fayalite (mol%):	18.5
Ferrosilite (mol%):	16.8
Classifier:	A. Sokol and A. Bischoff, Mün
Type spec mass (g):	12

Plots:

O isotopes:

Institutions
and collections

UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011)
Mün: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)

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Geography:

Oman

Coordinates:
Recommended::	(19° 13' 40"N, 54° 51' 13"E)

Statistics:
This is 1 of 2168 approved meteorites from Zufar, Oman (plus 24 unapproved names)
This is 1 of 4003 approved meteorites from Oman (plus 436 unapproved names)

Proximity search:

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