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

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 84 Kr/ 132 Xe and 36 Ar/ 132Xe ratios were seen to decrease with increased amounts of weathering, the δ 1...

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Bibliographic Details
Main Authors: Steer, E. D., Schwenzer, S. P., Wright, I. P., Ott, U., Grady, M. M.
Format: Conference Object
Language:unknown
Published: 2013
Subjects:
Antarctic
Sandford Cliffs
Antarc*
Antarctica
Online Access:https://oro.open.ac.uk/39388/
http://www.epsc2013.eu/
Description
Summary: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 84 Kr/ 132 Xe and 36 Ar/ 132Xe ratios were seen to decrease with increased amounts of weathering, the δ 15 N showed little change. The most weathered dolerite showed a signature close to Martian interior.

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