Sulfur Speciation in Carbonaceous Chondrites HF/HCl Residues by S K-Edge XANES Microspectrometry

F.-R. Orthous-Daunay,Eric Quirico,Laurence Lemelle,P. Beck,V. De Andrade,Alexandre S. Simionovici,Sylvie Derenne

Sulfur Speciation in Carbonaceous Chondrites HF/HCl Residues by S K-Edge XANES Microspectrometry

2009

F.-R. Orthous-Daunay
Eric Quirico
Laurence Lemelle
P. Beck
V. De Andrade
Alexandre S. Simionovici
Sylvie Derenne

Sulfur oxidation state of insoluble OM from 3 CI1, 5 CM2, Renazzo (CR2) and Tagish Lake was determined by S-XANES. Different redox ratios are reported among these chondrites, possibly evidencing chemical effects of hydrothermalism.

Keywords:

Redox
Oxidation state
K-edge
Chondrite
Sulfur
XANES
Inorganic chemistry
Chemistry
Geochemistry
Speciation
chemical effects

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