Imperial College London
Alternate

DrWrenMontgomery

Faculty of Engineering, Department of Earth Science & Engineering

Honorary Research Associate
 
 
 
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Contact

 

+44 (0)20 7594 5185w.montgomery CV

 
 
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Location

 

440/33Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sephton:2014:10.1002/2014gl062109,
author = {Sephton, MA and Lewis, JMT and Watson, JS and Montgomery, W and Garnier, C},
doi = {10.1002/2014gl062109},
journal = {Geophysical Research Letters},
pages = {7453--7460},
title = {Perchlorateinduced combustion of organic matter with variable molecular weights: Implications for Mars missions},
url = {http://dx.doi.org/10.1002/2014gl062109},
volume = {41},
year = {2014}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:title>Abstract</jats:title><jats:p>Instruments on the Viking landers and Curiosity rover analyzed samples of Mars and detected carbon dioxide and organic compounds of uncertain origin. Mineralassisted reactions are leading to uncertainty, particularly those involving perchlorate minerals which thermally decompose to produce chlorine and oxygen which can then react with organic matter to generate organochlorine compounds and carbon dioxide. Although generally considered a problem for interpretation, the release profiles of generated gases can indicate the type of organic matter present. We have performed a set of experiments with perchlorate and organic matter of variable molecular weights. Results indicate that organic susceptibility to thermal degradation and mineralassisted reactions is related to molecular weight. Low molecular weight organic matter reacts at lower temperatures than its high molecular weight counterparts. The natural occurrence and association of organic matter with differing molecular weights helps to discriminate between contamination (usually low molecular weight organic matter only) and indigenous carbon (commonly low and high molecular weight organic matter together). Our results can be used to provide insights into data returning from Mars.</jats:p>
AU  - Sephton,MA
AU  - Lewis,JMT
AU  - Watson,JS
AU  - Montgomery,W
AU  - Garnier,C
DO  - 10.1002/2014gl062109
EP  - 7460
PY  - 2014///
SN  - 0094-8276
SP  - 7453
TI  - Perchlorateinduced combustion of organic matter with variable molecular weights: Implications for Mars missions
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1002/2014gl062109
UR  - http://hdl.handle.net/10044/1/19171
VL  - 41
ER  -
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