Linking alteration of noble gas inventories with secondary petrographic features in Antarctic meteorites - an analogue

Steer, E. D.; Schwenzer, S. P.; Wright, I. P.; Ott, U. and Grady, M. M. (2013). Linking alteration of noble gas inventories with secondary petrographic features in Antarctic meteorites - an analogue. In: European Planetary Science Congress (EPSC) 2013, 8-13 Sep 2013, London, UK.

URL: http://www.epsc2013.eu/

Abstract

Dolerite samples taken from Sandford Cliffs, Antarctica were used as meteoritic analogues for cold desert residence and studied to investigate subsequent alteration of noble gas inventories. The 84Kr/132Xe and 36Ar/</sup>132Xe ratios were seen to decrease with increased amounts of weathering, the δ15N showed little change. The most weathered dolerite showed a signature close to Martian interior.

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