| MetSoc Home Publications Contacts |
|
||
|
||
| Allan Hills A79002 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Allan Hills A79002 This is an OFFICIAL meteorite name. Abbreviation: ALHA79002 This meteorite may also be called Allan Hills 79002 (ALH 79002) in publications. Observed fall: No Year found: 1979 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  223 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 6170 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 4(1):
Sample No.: ALHA79002 Location: Allan Hills Field No.: 1172 Weight (gms): 222.8 Meteorite Type: H6 Chondrite
Physical Description: Roberta Score A reddish-brown remnant fusion crust covers the entire stone with the exception of one small patch of black fusion crust. Several cracks penetrate the interior of the stone. No unweathered material was exposed by chipping. Dimensions: 8 x 5 x 4.5 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. Weathering is extensive, with veins and patches of brown limonite throughout the section. Microprobe analyses gave the following mineral compositions: olivine, Fa18; pyroxene, Fs16; plagioclase, An13. The meteorite is classified as an H6 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 440: |
|
||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||
| References: | Published in Antarctic Meteorite Newsletter 4(1) (1981), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
| ||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 40744 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||