header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 Jun 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Dhofar 2092
Basic information Name: Dhofar 2092
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 2092
Observed fall: No
Year found: 2015
Country: Oman
Mass:help 440 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 419 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 8 Jan 2018
Writeuphelp
Writeup from MB 107:

Dhofar 2092 (Dho 2092)        18°45.30’N, 54°31.15’E

Zufar, Oman

Find: 15 Feb 2015

Classification: HED achondrite (Eucrite)

Physical characteristics: A 440 g sample supplied by the Sultan Qaboos University, which has a millimeter thick, dark brown fusion crust present on all faces except one cut face. This fusion crust lacks remaglypts instead has a mainly rough surface and angular. There are no contraction cracks present on this sample. This rock has already been cut and there is a clean face already present. Beige colour clasts can be identified on cut face and they are surrounded by a light grey ground mass. The sample is not magnetic.

Petrography (P. Hill, UWO) The sample is breccia containing numerous clasts of coarse-grained plagioclase and pyroxene. The clasts are poorly sorted and are sub-rounded with one clast reaching up to 2 cm on the cut face. Pyroxene (low and high Ca) and plagioclase make up most of the clasts and the groundmass; however, and free silica was observed in significant quantities. The free silica mainly located at grain boundaries within the fine-grained groundmass. Distinct exsolution lamellae are present within the grains of pyroxene. Troilite and oxides are present within the sample and through EDS analysis the oxides were determined to be ilmenite. No weathering products were observed within the samples suggest a low degree of terrestrial weathering. The sample does show undulose extinction in some of the grains of plagioclase and irregular fractures were observed, but not in high abundance suggesting that the sample is very weakly shocked.

Geochemistry: Mineral composition and geochemistry (M. Beauchamp, P. Hill, UWO) Plagioclase (An88.4±0.9), Low-Ca Pyroxene (Fs59.8±2.5Wo3.0±2.4), High-Ca Pyroxene (Fs27.36±2.1Wo42.5±2.3) and Free Silica (SiO2 99.3 ±1.3 wt%)

Classification: Classificaiton: Eucrite S2, W1.

Specimens: 440 g type specimen, including polished thin section, are on deposit at SQU.

Data from:
  MB107
  Table 0
  Line 0:
State/Prov/County:Zufar
Date:15 Feb 2015
Latitude:18°45.30'N
Longitude:54°31.15'E
Mass (g):440
Pieces:3
Class:Eucrite
Ferrosilite (mol%):50.2±14.9 (N=173)
Wollastonite (mol%):15.22±18.0 (N=173)
Classifier:P. Hill, N. Banerjee, G. Osinski, UWO; S. Nasir, SQU
Type spec mass (g):440
Type spec location:SQU
Main mass:SQU
Comments:Submitted by P. Hill
Institutions
   and collections
UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015)
SQU: Sultan Qaboos University, College of Science, Earth Sciences Department, P.O. Box 36 Code 123 Al­Khoud, Oman (institutional address; updated 5 Oct 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Oman
Coordinates:
     Recommended::   (18° 45' 18"N, 54° 31' 9"E)

Statistics:
     This is 1 of 2118 approved meteorites from Zufar, Oman (plus 4 unapproved names)
     This is 1 of 3947 approved meteorites from Oman (plus 366 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page