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Nullarbor 018: A new L6 chondrite from Australia (1995)

Ruzicka, Alex

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Publication Date: 2019-08-27

Description: A new meteorite find from the Nullarbor Plain in Australia was studied using optical, scanning electron microscopy (SEM), and electron microprobe techniques. The meteorite, Nullarbor 018, is an orthodox L6 chondrite that experienced minor-to-moderate alteration of metal during terrestrial weathering (grade A-B to B). During weathering, trolite was preferentially altered, and roughly 20% of the original complement of S in the meteorite was removed. Shock metamorphic effects corresponding to shock stage S4 (or shock facies d) are found, including the presence of some diaplectic feldspar (maskelynite). The meteorite is not obviously paired with other finds from the Nullarbor region, but the possibility that it is paired cannot be excluded.

Keywords: LUNAR AND PLANETARY EXPLORATION

Type: Meteoritics (ISSN 0026-1114); 30; 1; p. 102-105

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