Formation temperatures of thermogenic and biogenic methane

@article{Stolper2014FormationTO,
  title={Formation temperatures of thermogenic and biogenic methane},
  author={Daniel A. Stolper and Michael Lawson and Cara L. Davis and A. A. B. Ferreira and Eugenio V. Santos Neto and Geoffrey S. Ellis and Michael D. Lewan and Anna M. Martini and Y. Tang and Martin Schoell and Alex L. Sessions and John Eiler},
  journal={Science},
  year={2014},
  volume={344},
  pages={1500 - 1503}
}
Making of methane deep underground Technologies such as hydraulic fracturing, or “fracking,” can now extract natural gas from underground reservoirs. Within the gas, the ratio of certain isotopes holds clues to its origins. Stolper et al. analyzed a wide range of natural gas, including samples from some of the most active fracking sites in the United States. Using a “clumped isotope” technique, the authors could estimate the high temperatures at which methane formed deep underground, as well as… 
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