Sulfur isotopic composition of Fe-Ni sulfide grains in CI and CM chrondrites.

Bullock, E. S.; McKeegan, K. D.; Gounelle, M. ; Grady, M. M. and Russell, S. S. (2009). Sulfur isotopic composition of Fe-Ni sulfide grains in CI and CM chrondrites. In: 72nd Annual Meteoritical Society Meeting, 13-18 July 2009, Nancy, France.

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Abstract

Sulfide minerals are ubiquitous in meteoritic material and can provide information regarding the processes that have affected chondritic parent bodies. In this work, we look at sulfide grains within aqueously altered CI and CM chondrites. Previous work has shown that increasing aqueous alteration can modify the chemical composition of sulfide grains [1-3]. Sulfate minerals formed by the oxidation of sulfides [4]; this should have left a mark on the isotopic signature of the sulfide grains, as the newly formed sulfates incorporate 32S preferentially.

Item Type:	Conference Item
Copyright Holders:	The Authors
Academic Unit/Department:	Science > Physical Sciences
Interdisciplinary Research Centre:	Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID:	33602
Depositing User:	Patricia Taylor
Date Deposited:	16 May 2012 15:58
Last Modified:	16 Nov 2012 14:06
URI:	http://oro.open.ac.uk/id/eprint/33602

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