| MetSoc Home Publications Contacts |
|
||
|
||
| MacAlpine Hills 88180 | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: MacAlpine Hills 88180 This is an OFFICIAL meteorite name. Abbreviation: MAC 88180 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  26.6 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 26 approved meteorites classified as EL3. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites | ||||||||||||||||||||||||
| Comments: | Field number: 5567 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 13(2):
Sample No. MAC88180 Location: MacAlpine Hills Dimensions (cm): 3.8x2.5x2.5 Field Number: 5547 Weight (g): 26.6 Meteorite Type: E3 chondrite
Macroscopic Description: Robbie Marlow Fusion crust totally covers this extremely weathered and fractured meteorite. The interior structure has been obliterated by oxidation. Only large orange-brown rust spots are visible.
Thin Section (,3) Description: Brian Mason Much of the section is occupied by a single large chondrule, 5 mm across; the remainder of the section consists of small chondrules and chondrule fragments in matrix consisting largely of small pyroxene grains, with some nickel-iron and sulfides. The silicate material appears to be entirely clinoenstatite. Microprobe analyses show the clinoenstatite of slightly variable compositions, with FeO 0.2-0.8% and CaO 0.1-0.4%; the metal grains have a variable Si content, 0.2-2.0%. The meteorite is tentatively identified as an E3 chondrite. It resembles MAC88136 and 88184, and the possibility of pairing should be considered. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 4728: |
|
||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||
| References: | Published in Antarctic Meteorite Newsletter 13(2) (1990), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
| ||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||||||