Formation temperatures of thermogenic and biogenic methane. Stolper, D. A., Lawson, M., Davis, C. L., Ferreira, A. A., Neto, Santos, E. V., Ellis, G. S., Lewan, M. D., Martini, A. M., Tang, Y., Schoell, M., Sessions, A. L., & Eiler, J. M. Science, 344(6191):1500--1503, June, 2014. ![Formation temperatures of thermogenic and biogenic methane [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Methane is an important greenhouse gas and energy resource generated dominantly by methanogens at low temperatures and through the breakdown of organic molecules at high temperatures. However, methane-formation temperatures in nature are often poorly constrained. We measured formation temperatures of thermogenic and biogenic methane using a “clumped isotope” technique. Thermogenic gases yield formation temperatures between 157° and 221°C, within the nominal gas window, and biogenic gases yield formation temperatures consistent with their comparatively lower-temperature formational environments (\textless50°C). In systems where gases have migrated and other proxies for gas-generation temperature yield ambiguous results, methane clumped-isotope temperatures distinguish among and allow for independent tests of possible gas-formation models. 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 the lower temperatures at which ancient microbes produced methane. The approach can help to distinguish the degree of mixing of gas from both sources. Science, this issue p. 1500
@article{ stolper_formation_2014,
title = {Formation temperatures of thermogenic and biogenic methane},
volume = {344},
issn = {0036-8075, 1095-9203},
url = {http://www.sciencemag.org/content/344/6191/1500},
doi = {10.1126/science.1254509},
abstract = {Methane is an important greenhouse gas and energy resource generated dominantly by methanogens at low temperatures and through the breakdown of organic molecules at high temperatures. However, methane-formation temperatures in nature are often poorly constrained. We measured formation temperatures of thermogenic and biogenic methane using a “clumped isotope” technique. Thermogenic gases yield formation temperatures between 157° and 221°C, within the nominal gas window, and biogenic gases yield formation temperatures consistent with their comparatively lower-temperature formational environments ({\textless}50°C). In systems where gases have migrated and other proxies for gas-generation temperature yield ambiguous results, methane clumped-isotope temperatures distinguish among and allow for independent tests of possible gas-formation models.
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 the lower temperatures at which ancient microbes produced methane. The approach can help to distinguish the degree of mixing of gas from both sources.
Science, this issue p. 1500},
language = {en},
number = {6191},
urldate = {2014-06-27TZ},
journal = {Science},
author = {Stolper, D. A. and Lawson, M. and Davis, C. L. and Ferreira, A. A. and Neto, E. V. Santos and Ellis, G. S. and Lewan, M. D. and Martini, A. M. and Tang, Y. and Schoell, M. and Sessions, A. L. and Eiler, J. M.},
month = {June},
year = {2014},
pages = {1500--1503}
}
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However, methane-formation temperatures in nature are often poorly constrained. We measured formation temperatures of thermogenic and biogenic methane using a “clumped isotope” technique. Thermogenic gases yield formation temperatures between 157° and 221°C, within the nominal gas window, and biogenic gases yield formation temperatures consistent with their comparatively lower-temperature formational environments ({\\textless}50°C). In systems where gases have migrated and other proxies for gas-generation temperature yield ambiguous results, methane clumped-isotope temperatures distinguish among and allow for independent tests of possible gas-formation models.\nMaking of methane deep underground\nTechnologies 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. 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