Chloromethane release from carbonaceous meteorite affords new insight into Mars lander findings

@inproceedings{Keppler2014ChloromethaneRF,
  title={Chloromethane release from carbonaceous meteorite affords new insight into Mars lander findings},
  author={Frank Keppler and David B. Harper and Markus Greule and Ulrich Ott and Tobias Sattler and Heinz Friedrich Sch{\"o}ler and John T. G. Hamilton},
  booktitle={Scientific reports},
  year={2014}
}
Controversy continues as to whether chloromethane (CH3Cl) detected during pyrolysis of Martian soils by the Viking and Curiosity Mars landers is indicative of organic matter indigenous to Mars. Here we demonstrate CH3Cl release (up to 8 μg/g) during low temperature (150-400°C) pyrolysis of the carbonaceous chondrite Murchison with chloride or perchlorate as chlorine source and confirm unequivocally by stable isotope analysis the extraterrestrial origin of the methyl group (δ(2)H +800 to +1100… CONTINUE READING