header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 27 Nov 2022
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:  
Dekkaliat
Basic information Name: Dekkaliat
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Mauritania
Mass:help 1830 g
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 505 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 21 Feb 2021
Writeuphelp
Writeup from MB 110:

Dekkaliat        15°47’53.99"N, 8°59’57.98"W

Hodh El Gharbi, Mauritania

Find: October, 2020

Classification: HED achondrite (Diogenite)

History: The meteorite was found in southeast Mauritania about 30 km north of the border to Mali and subsequently purchased by the main mass holders.

Physical characteristics: Two fragile fragments weighing 1345 and 485 g, respectively, have been recovered. They are mostly covered by black fusion crust and expose a light brownish to orange interior.

Petrography: The meteorite is a monomict breccia predominantly composed of up to 2 mm sized orthopyroxene crystals set into fine-grained related matrix. Minor phases include silica, chromite, FeS, and metallic Fe. No feldspar has been detected in the two thin sections studied.

Geochemistry: low-Ca pyroxene: Fs26.3±0.6Wo1.4±0.1 (Fs25.6-27.0Wo1.3-1.4, n=7, FeO/MnO=23-24)

Classification: Achondrite (diogenite). This diogenite is distinct from the nearby Aioun el Atrouss diogenite that is polymict (with 15-25 mm sized eucrite clasts), and has larger grain size (up to 7 mm in size).

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Hodh El Gharbi
Place of purchase:Mauritania
Date:October, 2020
Latitude:15°47'53.99"N
Longitude:8°59'57.98"W
Mass (g):1830
Pieces:2
Class:Diogenite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):26.3
Wollastonite (mol%):1.4
Classifier:A. Greshake, MNB
Type spec mass (g):22.1
Type spec location:MNB
Main mass:Chnaoui Larbi and Lucian Cojocaru
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Mauritania
Coordinates:
     Recommended::   (15° 47' 54"N, 8° 59' 58"W)

Statistics:
     This is 1 of 3 approved meteorites from Hodh El Gharbi, Mauritania
     This is 1 of 184 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page