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Proceedings Paper

Thiophenes as indicators of aqueous alteration in carbonaceous meteorites
Author(s): Mark A. Sephton; Randall S. Perry; Richard B. Hoover
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Paper Abstract

A common class of organic compound in low petrographic type meteorites is the sulfur-containing thiophenes. The presence of this compound class in organic-rich meteorites which have experienced substantial levels of aqueous alteration is relatively unexplored. Early reports of these compounds attributed them to artefacts brought about by reactions between elemental sulfur and organic matter during high temperature extraction and analysis steps. Subsequent investigations confirmed their indigeneity, yet their environment of formation remained unconstrained. Here we present data which suggests that thiophenes are parent body alteration products that reflect the role of liquid water on asteroids in the early solar system.

Paper Details

Date Published: 14 September 2006
PDF: 5 pages
Proc. SPIE 6309, Instruments, Methods, and Missions for Astrobiology IX, 63090Q (14 September 2006); doi: 10.1117/12.698393
Show Author Affiliations
Mark A. Sephton, Imperial College London (United Kingdom)
Randall S. Perry, Imperial College London (United Kingdom)
Planetary Science Institute (United States)
Richard B. Hoover, NASA/National Space Science and Technology Ctr. (United States)

Published in SPIE Proceedings Vol. 6309:
Instruments, Methods, and Missions for Astrobiology IX
Richard B. Hoover; Gilbert V. Levin; Alexei Y. Rozanov, Editor(s)

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