Imperial College London
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ProfessorMarkSephton

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Organic Geochemistry
 
 
 
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Contact

 

+44 (0)20 7594 6542m.a.sephton Website

 
 
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Location

 

2.34Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jaramillo:2019:10.1029/2018GL081335,
author = {Jaramillo, EA and Royle, S and Claire, M and Kounaves, S and Sephton, M},
doi = {10.1029/2018GL081335},
journal = {Geophysical Research Letters},
pages = {3090--3098},
title = {Indigenous organic-oxidized fluid interactions in the tissint Mars meteorite},
url = {http://dx.doi.org/10.1029/2018GL081335},
volume = {46},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The observed fall and rapid recovery of the Tissint Mars meteorite has provided minimally contaminated samples of the Martian surface. We report analyses of Tissint for organic compounds by pyrolysisgas chromatographymass spectrometry and for soluble salts by ion chromatography. Pyrolysisgas chromatographymass spectrometry analysis shows the presence of organic compounds similar to those in the Mars EETA79001 and Nakhla meteorites. The organic profile is dominated by aromatic hydrocarbons, including oxygen and nitrogencontaining aromatics, and sulfurcontaining species including thiophenes. The soluble salts in Tissint are dominated by sulfate and various oxidation states of chlorine, including perchlorate. The organic compounds and salts in the soils from the Tissint recovery strewn field differ significantly from those found in Tissint suggesting minimal terrestrial contamination. Our results support the hypothesis that the soluble inorganic components of Tissint are most likely a result of indigenous fluid inclusion, thus providing a glimpse into the composition of early Martian fluids.
AU  - Jaramillo,EA
AU  - Royle,S
AU  - Claire,M
AU  - Kounaves,S
AU  - Sephton,M
DO  - 10.1029/2018GL081335
EP  - 3098
PY  - 2019///
SN  - 0094-8276
SP  - 3090
TI  - Indigenous organic-oxidized fluid interactions in the tissint Mars meteorite
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1029/2018GL081335
UR  - http://hdl.handle.net/10044/1/68653
VL  - 46
ER  -
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