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Thiel Mountains 82414
Basic information Name: Thiel Mountains 82414
     This is an OFFICIAL meteorite name.
Abbreviation: TIL 82414
Observed fall: No
Year found: 1982
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 15.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 7(2)  (1984)  H5
Meteoritical Bulletin:  MB 76  (1994)  H5
NHM Catalogue:  5th Edition  (2000)  H5
MetBase:  v. 7.1  (2006)  H5
Recommended:  H5    [explanation]

This is 1 of 10151 approved meteorites (plus 18 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 7(2):

Sample No.: TIL82414 & TIL82415

Location: Thiel Mountains

Field No.: 2733 & 2794

Weight (gms): 14.2 & 70.2 Meteorite Type: H5 Chondrite

 

Physical Description: Roberta Score

TIL82414 and TIL82415are covered with weathered fusion crust. The interiors have scattered patches of oxidation in a medium gray colored matrix with small light and dark inclusions. Dimensions: 3 x 2 x 1 cm & 4 x 3 x 2.5 cm

Petrographic Description: Brian Mason

Chondritic structure is prominent, but individual chondrules are poorly defined and their margins tend to merge with the granular groundmass, which consists largely of olivine and pyroxene with minor amounts of nickel-iron and troilite. A minor degree of weathering is indicated by brown limonitic staining around metal grains. Microprobe analyses give the following com-positions: olivine, Fa17; pyroxene, Fs15. The meteorite is an H5 chondrite. The sections of these meteorites are very similar in texture and degree of weathering, and the mineral compositions are the same. The possibility of pairing should be considered.

Data from:
  MB76
  Table 2
  Line 5478:
Origin or pseudonym:Davies Escarpment
Mass (g):15.4
Class:H5
Weathering grade:B
Fayalite (mol%):17
Ferrosilite (mol%):15
Comments:82414 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 7(2) (1984), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (85° 15'S, 91° 0'W)
     Recommended::   (85° 15'S, 91° 0'W)

Statistics:
     This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names)
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