Imperial College London

ProfessorSamuelKounaves

Faculty of EngineeringDepartment of Earth Science & Engineering

Visiting Professor
 
 
 
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Contact

 

+44 (0)7763 262 356s.kounaves Website CV

 
 
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Location

 

2.34Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Royle:2018:10.1029/2018JE005711,
author = {Royle, SH and Tan, J and Kounaves, SP and Sephton, M},
doi = {10.1029/2018JE005711},
journal = {Journal of Geophysical Research: Planets},
pages = {2790--2802},
title = {Survivability of 1-chloronapthalene during simulated early diagenesis – Implications for chlorinated hydrocarbon detection on Mars},
url = {http://dx.doi.org/10.1029/2018JE005711},
volume = {123},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - All missions to Mars which have attempted to detect organic molecules have detected simple chlorohydrocarbons, the source of which has yet to be firmly established. This study assessed the likelihood of these chlorinated molecules being indigenous to the sedimentary units in which they were detected or if they were chlorinated during analysis. The survivability of 1-chloronapthalene was examined via hydrous pyrolysis experiments and its de-chlorination kinetics were determined. The results of these experiments were used to model the survivability of this simple chlorohydrocarbon under Mars-relevant diagenetic conditions using the Sheepbed mudstone unit as a case study. It was found that 1-chloronapthalene was rapidly dechlorinated under Noachian conditions and thus the detected Martian chlorohydrocarbons are unlikely to be ancient and probably formed within the rover’s sample handling chain during analysis.
AU - Royle,SH
AU - Tan,J
AU - Kounaves,SP
AU - Sephton,M
DO - 10.1029/2018JE005711
EP - 2802
PY - 2018///
SN - 2169-9097
SP - 2790
TI - Survivability of 1-chloronapthalene during simulated early diagenesis – Implications for chlorinated hydrocarbon detection on Mars
T2 - Journal of Geophysical Research: Planets
UR - http://dx.doi.org/10.1029/2018JE005711
UR - http://hdl.handle.net/10044/1/65297
VL - 123
ER -