Meteoritical Bulletin: Entry for Plateau du Tademait 011

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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: 135 g

Classification
history:

Meteoritical Bulletin:	MB 112	(2023)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 408 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 7 May 2023

Writeup

help

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: Fs_23.0±0.2Wo_2.1±0.1(Fs_22.8-23.2Wo_1.9-2.3, FeO/MnO=24-27, n=7); zoned low-Ca pyroxene: Fs_24.7±6.2Wo_1.3±0.5(Fs_17.4-34.2Wo_0.7-2.0, FeO/MnO=25-33, n=7); low-Ca pyroxene host to augite exsolution lamellae: Fs_59.1±0.2Wo_3.0±0.2(Fs_58.8-59.2Wo_2.8-3.4, FeO/MnO=28-31, n=7); augite exsolution lamellae: Fs_27.3±0.1Wo_41.6±0.1(Fs_27.2-27.5Wo_41.3-41.8, FeO/MnO=23-26, n=7); calcic plagioclase: An_89.3±1.8(An_86.4-91.1, 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)

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Geography:

Algeria

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 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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Revision
history:

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