Meteoritical Bulletin: Entry for Thiel Mountains 82405

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 18 Jan 2021
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Thiel Mountains 82405

Basic information

Name: Thiel Mountains 82405
This is an OFFICIAL meteorite name.
Abbreviation: TIL 82405
Observed fall: No
Year found: 1982
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 1116 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 7(1)	(1984)	H6
Meteoritical Bulletin:	MB 76	(1994)	H6
NHM Catalogue:	5th Edition	(2000)	H6
MetBase:	v. 7.1	(2006)	H6
Recommended:			H6 [explanation]

This is 1 of 6147 approved meteorites (plus 5 unapproved names) classified as H6. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Writeup

Writeup from AMN 7(1):

Sample No.: TIL82405

Location: Thiel Mountains

Field No.: 2715, 2721, 2750

Weight (gms): 1000.7

Meteorite Type: H6 Chondrite

Physical Description: Carol Schwarz

Three perfectly fitting pieces make up TIL82405. The fusion crust contains oxidation halos and is polygonally fractured. The interior is gray with small specs of oxidation. A 1 to 4 mm wide weathering rind was exposed. Dimensions: 15 x 10 x 14 cm

Petrographic Description: Brian Mason

Chondrules are sparse and poorly defined, tending to merge with the granular groundmass, which consists largely of olivine and pyroxene, with minor amounts of nickel-iron, plagioclase, and troilite. Brown limonitic staining surrounds the metal grains. Microprobe analyses give the following compositions: olivine, Fa19; pyroxene, Fs17; plagioclase, An13. The meteorite is an H6 chondrite.

Data from:
  MB76
  Table 2
  Line 5469:

Origin or pseudonym:	Davies Escarpment
Mass (g):	1115.7
Class:	H6
Weathering grade:	B
Fayalite (mol%):	19
Ferrosilite (mol%):	17

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 7(1) (1984), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)

Find references in NASA ADS:
Find references in Google Scholar:

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)

Proximity search:

Direct link to this page