| MetSoc Home Publications Contacts |
|
||
|
||
| Biduna Blowhole 004 | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Biduna Blowhole 004 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass:  114.5 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 11568 approved meteorites (plus 23 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 9 Jan 2013 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 102:
Biduna Blowhole 004 31°1’58.0"S, 131°17’7.9"E South Australia, Australia Found: 6 Apr 2011 Classification: Ordinary chondrite (H5) History: Single piece found by A. Tomkins on the Nullarbor Plain. Physical characteristics: Unusually shaped 8 × 2.5 × 2 cm stone, dense, rounded edges, lacking fusion crust. Petrography: (E. Mare, Monash) Sample contains few well-defined chondrules (largest is 2 mm) and recrystallized and rusted matrix. Chondrule types include CC, RP, POP, PP, BO. Fe-Ni metal grains (5%) are 250 μm on average. Troilite grains (3%) are 50-100 μm on average. Both metal and troilite have been partly replaced by oxides, however only to a limited extent, with ~5% oxides in this meteorite. Olivine grains show slightly undulose extinction and occasionally planar fractures. There is evidence of melt pockets where troilite and metal have flowed around silicate grains. Geochemistry: (E. Mare, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa19.4-20.0, mean=Fa19.6, std=0.3, n=4; Low-Ca pyroxene Fs17.4-18.0, mean=Fs17.5, std=0.3, n=4. Classification: Ordinary chondrite (H5, S3, W2) | ||||||||||||||||||||||||||||||||||||||
| Data from: MB102 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||||||||||
| Institutions and collections |
Monash: Building 28
School of Geosciences
Monash University
Victoria 3800
Australia, Australia (institutional address; updated 12 Dec 2012) |
||||||||||||||||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||||||||||||||||
| References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
| ||||||||||||||||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 241 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters) This is 1 of 719 approved meteorites from Australia (plus 11 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||||
| 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.
| ||||||||||||||||||||||||||||||||||||||