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Dhofar 2115
Basic information Name: Dhofar 2115
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 2115
Observed fall: No
Year found: 2018
Country: Oman
Mass:help 80.5 kg
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 594 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 10 Apr 2021
Writeuphelp
Writeup from MB 110:

Dhofar 2115 (Dho 2115)        19°25.510’N, 54°05.038’E

Zufar, Oman

Find: 19 Jan 2018

Classification: Ureilite

History: A large meteorite broken into several large and >100 small pieces was found during a search for meteorites. Largest sample of a strewnfield consisting of 8 masses.

Physical characteristics: Large individual broken into many pieces, ablated surface with regmaglypts and traces of fusion crust present

Petrography: (J. Pape, E. Gnos, B. Hofmann) The sample consist mainly of olivine with minor pigeonite both with slight preferred grain orientation and shows the characteristic ureilitic texture. Typical grain size is 1.0-2.5 mm. Olivine rims are reduced (width 150-300 μm) and contain abundant tiny metal blebs that are largely oxidized due to terrestrial weathering. Carbon platelets (up to 1.5 mm length) consist mainly of diamond and some minor microcrystalline graphite. Silicates are weakly shocked (S2). Weathering moderate (most iron oxidized, silicates are unaffected).

Geochemistry: (J. Pape, NMBE) Olivine and pigeonite cores are homogeneous. Fa21.2±0.4, Fe/Mn 45±2, Cr2O3 0.74±0.02 wt% (N = 11), reduced Ol rims have Fa>2.0. Pigeonite has Fs18.3±0.3Wo5.5±0.1, Cr2O3 1.08±0.03 wt% (N = 18).

Classification: Based on texture, mineralogy and geochemistry this is an unbrecciated, monomict, ferroan ureilite.

Specimens: 134 g including one polished thin section at NMBE, main mass: MHTO

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Zufar
Origin or pseudonym:Desert plain
Date:19 Jan 2018
Latitude:19°25.510'N
Longitude:54°05.038'E
Mass (g):80.5 kg
Pieces:>100
Class:Ureilite
Shock stage:low
Weathering grade:medium
Fayalite (mol%):21.2±0.4 (N = 11)
Ferrosilite (mol%):18.3±0.3 (N = 18)
Wollastonite (mol%):5.5±0.1 (N = 18)
Classifier:J. Pape, E. Gnos, B. Hofmann
Type spec mass (g):134
Type spec location:NMBE
Main mass:MHTO
Finder:U. Eggenberger, M. Fisch, A. Glauser, G. Weibel, M. Wolffers, W. Zucha, S. Al-Hamemi
Comments:Field number 1801_0006; submitted by Beda Hofmann
Institutions
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
MHTO: Ministry of Heritage and Tourism Muscat , Oman (institutional address; updated 10 Apr 2021)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Beda Hofmann      
Geography:

Oman
Coordinates:
     Recommended::   (19° 25' 31"N, 54° 5' 2"E)

Strewnfield: Click here to view 8 members

Statistics:
     This is 1 of 2166 approved meteorites from Zufar, Oman (plus 22 unapproved names)
     This is 1 of 3999 approved meteorites from Oman (plus 434 unapproved names)
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