| MetSoc Home Publications Contacts |
|
||
|
||
| Allan Hills 82105 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Allan Hills 82105 This is an OFFICIAL meteorite name. Abbreviation: ALH 82105 Observed fall: No Year found: 1982 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  363 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 12780 approved meteorites (plus 11 unapproved names) classified as L6. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 7(1):
Sample No.: ALH82105 Location: Allan Hills Field No.: 2996 Weight (gms): 363.3 Meteorite Type: L6 Chondrite
Physical Description: Roberta Score ALH82105 is flat with well rounded edges and is totally covered with brown and black polygonally fractured fusion crust. Many oxidation halos are visible on the fusion crust. A continuous weathering rind with thickness ranging from 0.1 to 0.5 cm was exposed when the meteorite was chipped. The center of the stone is whitish-gray in color with few areas of oxidation present. Abundant metal is obvious. Dimensions: 8 x 7.5 x 3 cm
Petrographic Description: Brian Mason Chondrules are relatively sparse, most of the section consisting of a granular aggregate of olivine and pyroxene, with minor amounts of plagioclase, nickel-iron, and troilite. Well-preserved fusion crust, up to 0.6 mm thick, rims part of the sections. Minor weathering is indicated by brown limonitic staining around metal grains. Microprobe analyses give the following compositions: olivine, Fa24; pyroxene, Fs21; plagioclase, An11. The meteorite is an L6 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 844: |
|
||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||
| References: | Published in Antarctic Meteorite Newsletter 7(1) (1984), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
| ||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||
| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||||||
| Revision history: |
This lists important revisions made to data for this record.
| ||||||||||||||||||||