The Myrtle Springs meteorite: A chondrite (H4) from South Australia

M. Zbik; A. Pring

The Myrtle Springs meteorite: A chondrite (H4) from South Australia

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

A single stone of 52.99 g was found 30 km west of the Old Myrtle Springs homestead on the Lake Torrens Plains, (30° 27′ 13.8″ S, 137° 59′ 24.6″ E). The chondrules in the meteorite are well defined and the dark matrix consists of fine olivine and pyroxene grains. Olivine (Fa _{17.2 ± 0.6}), orthopyroxene (Fs _{15.7 ± 0.7}Wo_1.8+0.8), clinopyroxene (Wo _{22 ±2.0}Fs_{14 ± 1.0}), troilite and chromite are present. Radial pyroxene chondrules, porphyritic pyroxene chondrules, granular olivine-pyroxene porphyritic and olivine-pyroxene chondrules are abundant in the meteorite. Cryptocrystalline pyroxene chondrules and pyroxene-olivine chondrules are rare. Based on texture and mineral chemistry, the Myrtle Springs meteorite is classified as an H4 chondrite of shock stage S1-2, weathering grade W4.

Original language	English
Pages (from-to)	33-36
Number of pages	4
Journal	Transactions of the Royal Society of South Australia
Volume	128
Issue number	1
Publication status	Published - 31 May 2004
Externally published	Yes

Keywords

Chondrite
Meteorite
Myrtle Springs

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Zbik, M., & Pring, A. (2004). The Myrtle Springs meteorite: A chondrite (H4) from South Australia. Transactions of the Royal Society of South Australia, 128(1), 33-36.

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abstract = "A single stone of 52.99 g was found 30 km west of the Old Myrtle Springs homestead on the Lake Torrens Plains, (30° 27′ 13.8″ S, 137° 59′ 24.6″ E). The chondrules in the meteorite are well defined and the dark matrix consists of fine olivine and pyroxene grains. Olivine (Fa 17.2 ± 0.6), orthopyroxene (Fs 15.7 ± 0.7Wo1.8+0.8), clinopyroxene (Wo 22 ±2.0Fs14 ± 1.0), troilite and chromite are present. Radial pyroxene chondrules, porphyritic pyroxene chondrules, granular olivine-pyroxene porphyritic and olivine-pyroxene chondrules are abundant in the meteorite. Cryptocrystalline pyroxene chondrules and pyroxene-olivine chondrules are rare. Based on texture and mineral chemistry, the Myrtle Springs meteorite is classified as an H4 chondrite of shock stage S1-2, weathering grade W4.",

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N2 - A single stone of 52.99 g was found 30 km west of the Old Myrtle Springs homestead on the Lake Torrens Plains, (30° 27′ 13.8″ S, 137° 59′ 24.6″ E). The chondrules in the meteorite are well defined and the dark matrix consists of fine olivine and pyroxene grains. Olivine (Fa 17.2 ± 0.6), orthopyroxene (Fs 15.7 ± 0.7Wo1.8+0.8), clinopyroxene (Wo 22 ±2.0Fs14 ± 1.0), troilite and chromite are present. Radial pyroxene chondrules, porphyritic pyroxene chondrules, granular olivine-pyroxene porphyritic and olivine-pyroxene chondrules are abundant in the meteorite. Cryptocrystalline pyroxene chondrules and pyroxene-olivine chondrules are rare. Based on texture and mineral chemistry, the Myrtle Springs meteorite is classified as an H4 chondrite of shock stage S1-2, weathering grade W4.

AB - A single stone of 52.99 g was found 30 km west of the Old Myrtle Springs homestead on the Lake Torrens Plains, (30° 27′ 13.8″ S, 137° 59′ 24.6″ E). The chondrules in the meteorite are well defined and the dark matrix consists of fine olivine and pyroxene grains. Olivine (Fa 17.2 ± 0.6), orthopyroxene (Fs 15.7 ± 0.7Wo1.8+0.8), clinopyroxene (Wo 22 ±2.0Fs14 ± 1.0), troilite and chromite are present. Radial pyroxene chondrules, porphyritic pyroxene chondrules, granular olivine-pyroxene porphyritic and olivine-pyroxene chondrules are abundant in the meteorite. Cryptocrystalline pyroxene chondrules and pyroxene-olivine chondrules are rare. Based on texture and mineral chemistry, the Myrtle Springs meteorite is classified as an H4 chondrite of shock stage S1-2, weathering grade W4.

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