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Tindouf 007
Basic information Name: Tindouf 007
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Algeria
Mass:help 1979 g
Classification
  history:
Recommended:  Iron, IAB complex    [explanation]

This is 1 of 79 approved meteorites (plus 1 unapproved name) classified as Iron, IAB complex.   [show all]
Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 19 Dec 2021
Writeuphelp
Writeup from MB 110:

Tindouf 007        27°57.00’N, 7°56.78’W

Tindouf, Algeria

Find: 2020

Classification: Iron meteorite (IAB complex)

History: A single, 160 g oriented stone and 42 smaller masses were found in 2020, in an area approximately 40 km NW from Tindouf, locally known as Wad Alma ("water valley"). Purchased from a dealer in Tindouf in September 2020.

Physical characteristics: Masses have a dark brown, mottled exterior, with obvious terrestrial alteration. Cut surfaces of the examined specimens shown an equilibrated texture.

Petrography: (C. Herd and P. Hill, UAb) Petrographic investigation by optical and scanning electron microscopy reveals equant, mm to sub-mm kamacite grains with 120 grain boundaries. No high-Ni phases were observed. Silicate inclusions are present, but are heavily altered and were not identified. Some terrestrial alteration extends into the interior.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd, P. Hill, and S. DuFrane UAb): Ni = 5.5, Co = 0.475 (both wt%); Ir = 2.9, Ga = 21, Ge = 55, As = 5.1, Sb = 0.15, Ru = 3.4, Re = 0.22, Os = 2.2, W = 2.2, Pt = 6.0, Cu = 216 (all μg/g).

Classification: (C. Herd and P. Hill, UAb): IAB iron, recrystallized. Closest to Main Group sub-group. Classification is based on Ni, Co, Ir, W, Cu, and Sb, by comparison with Wasson and Kallemeyn (2002), and the presence of silicate inclusions.

Specimens: Type specimen of 45 g consisting of three slices at UAb. Main mass with Juan Chen and Shun-Chung Yang.

Bibliography:
  • Wasson J.T. and Kallemeyn, G.W. (2002) The IAB iron-meteorite complex: A group, five subgroups, numerous grouplets, closely related, mainly formed by crystal segregation in rapidly cooling melts. Geochim. Cosmochim. Acta 66 2445-2473 (link)
Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Tindouf
Date:2020
Latitude:27°57.00'N
Longitude:7°56.78'W
Mass (g):1979
Pieces:43
Class:Iron, IAB complex
Shock stage:low
Weathering grade:moderate
Classifier:C. Herd, UAb
Type spec mass (g):45.0
Type spec location:UAb
Main mass:Juan Chen and Shun-Chung Yang
Comments:Submitted by C. Herd
Institutions
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 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
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
chen wang   
Robert Smart   
Geography:

Algeria
Coordinates:
     Recommended::   (27° 57' 0"N, 7° 56' 47"W)

Statistics:
     This is 1 of 50 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)
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