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| Thiel Mountains 82406 | |||||||||||||||||||||
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| Basic information | Name: Thiel Mountains 82406 This is an OFFICIAL meteorite name. Abbreviation: TIL 82406 Observed fall: No Year found: 1982 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  152 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 1709 approved meteorites (plus 4 unapproved names) classified as L4. [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(2):
Sample No.: TIL82406 Location: Thiel Mountains Field No.: 2764 Weight (gms): 152.0 Meteorite Type: L4 chondrite
Physical Description: Roberta Score The overall shape of TIL82406 is angular with subrounded edges. Dull black fusion crust covers most of the store. The dark gray interior contains numerous inclusions and oxidation is evenly scattered throughout. Dimensions: 5.5 x 5.0 x 3.5 cm
Petrographic Description: Brian Mason The section shows a close-packed aggregate of chondrules, up to 2 mm across, in a small amount of matrix consisting of fine-grained olivine and pyroxene and coarser grains of nickel-iron and troilite. The commonest types of chondrules are porphyritic olivine and olivine-pyroxene, and fine-grained pyroxene; much of the pyroxene is polysynthetically twinned clinobronzite. Brown limonitic staining pervades the section. Microprobe analyses give the following compositions: olivine, Fa23, pyroxene somewhat variable, mean Fs19. The meteorite is an L4 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 5470: |
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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:
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Statistics: This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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