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Plateau du Tademait 011
Basic information Name: Plateau du Tademait 011
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2023
Country: Algeria
Mass:help 135 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 414 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 7 May 2023
Writeuphelp
Writeup from MB 112:

Plateau du Tademait 011        28°36’52"N, 0°6’58.50"E

Adrar, Algeria

Purchased: 2023 Feb 10

Classification: HED achondrite (Eucrite, polymict)

History: The meteorite was found on February 10, 2022 in Algeria and subsequently purchased by the main mass holder from Mr. J. Z. Sidi, Spain.

Physical characteristics: Dark grayish rock partly covered with fusion crust.

Petrography: Polymict breccia composed of up to 7 mm sized lithic and up to 700 µm sized mineral fragments set in fine-grained clastic matrix. Lithic clasts include basaltic and gabbroic plus black melt rock fragments. Predominant minerals are diogenetic low-Ca pyroxene (about 5 vol%), zoned low-Ca pyroxene, exsolved pyroxene, and calcic plagioclase. Minor phases include silica, ilmenite, chromite, troilite, and Ni-free metal.

Geochemistry: diogenetic pyroxene: Fs23.0±0.2Wo2.1±0.1 (Fs22.8-23.2Wo1.9-2.3, FeO/MnO=24-27, n=7); zoned low-Ca pyroxene: Fs24.7±6.2Wo1.3±0.5 (Fs17.4-34.2Wo0.7-2.0, FeO/MnO=25-33, n=7); low-Ca pyroxene host to augite exsolution lamellae: Fs59.1±0.2Wo3.0±0.2 (Fs58.8-59.2Wo2.8-3.4, FeO/MnO=28-31, n=7); augite exsolution lamellae: Fs27.3±0.1Wo41.6±0.1 (Fs27.2-27.5Wo41.3-41.8, FeO/MnO=23-26, n=7); calcic plagioclase: An89.3±1.8 (An86.4-91.1, n=7)

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Adrar
Place of purchase:Spain
Date:P 2023 Feb 10
Latitude:28°36'52"N
Longitude:0°6'58.50"E
Mass (g):135
Pieces:1
Class:Eucrite-pmict
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):23.0; 24.7; 59.1; 27.3
Wollastonite (mol%):2.1; 1.3; 3.0; 41.6
Classifier:A. Greshake, MNB
Type spec mass (g):20.1
Type spec location:MNB
Main mass:Michel Haak
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 Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:
     Recommended::   (28° 36' 52"N, 0° 6' 59"E)

Statistics:
     This is 1 of 201 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 1364 approved meteorites from Algeria (plus 31 unapproved names) (plus 4 impact craters)
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