Thiophenes as indicators of aqueous alteration in carbonaceous meteorites

Mark A. Sephton; Randall S. Perry; Richard B. Hoover

doi:10.1117/12.698393

14 September 2006 Thiophenes as indicators of aqueous alteration in carbonaceous meteorites

Mark A. Sephton, Randall S. Perry, Richard B. Hoover

Proceedings Volume 6309, Instruments, Methods, and Missions for Astrobiology IX; 63090Q (2006) https://doi.org/10.1117/12.698393
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

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.

Citation Download Citation

Mark A. Sephton, Randall S. Perry, and Richard B. Hoover "Thiophenes as indicators of aqueous alteration in carbonaceous meteorites", Proc. SPIE 6309, Instruments, Methods, and Missions for Astrobiology IX, 63090Q (14 September 2006); https://doi.org/10.1117/12.698393

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