G
Georges Lacrampe-Couloume
Researcher at University of Toronto
Publications - 62
Citations - 4467
Georges Lacrampe-Couloume is an academic researcher from University of Toronto. The author has contributed to research in topics: Reductive dechlorination & Isotope fractionation. The author has an hindex of 35, co-authored 61 publications receiving 4023 citations. Previous affiliations of Georges Lacrampe-Couloume include University of California, Davis.
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Abiogenic formation of alkanes in the Earth's crust as a minor source for global hydrocarbon reservoirs
TL;DR: The progressive isotopic trends for the series of C1–C4 alkanes indicate that hydrocarbon formation occurs by way of polymerization of methane precursors, and it can now be rule out the presence of a globally significant abiogenic source of hydrocarbons.
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Solubility trapping in formation water as dominant CO2 sink in natural gas fields
Stuart Gilfillan,Barbara Sherwood Lollar,Greg Holland,David Blagburn,Scott Stevens,Martin Schoell,Martin Cassidy,Zhenju Ding,Zhenju Ding,Zheng Zhou,Georges Lacrampe-Couloume,Chris J. Ballentine +11 more
TL;DR: It is suggested that long-term anthropogenic CO2 storage models in similar geological systems should focus on the potential mobility of CO2 dissolved in water, following the findings that geological mineral fixation is a minor CO2 trapping mechanism in natural gas fields.
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Unravelling abiogenic and biogenic sources of methane in the Earth's deep subsurface
B. Sherwood Lollar,Georges Lacrampe-Couloume,Greg F. Slater,J. A. Ward,Duane P. Moser,Thomas M. Gihring,Li-Hung Lin,Tullis C. Onstott +7 more
TL;DR: In this paper, carbon and hydrogen isotopic signatures were used to estimate the relative contribution of abiogenic versus microbial hydrocarbon gases at four underground sites in Precambrian Shield rocks in Canada and South Africa.
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The yield and isotopic composition of radiolytic H2, a potential energy source for the deep subsurface biosphere
Li-Hung Lin,Greg F. Slater,Greg F. Slater,Barbara Sherwood Lollar,Georges Lacrampe-Couloume,Tullis C. Onstott +5 more
TL;DR: In this article, the authors measured the importance of radiolytic H2 in subsurface environments and to determine whether its isotopic signature can be used as a diagnostic tool.
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Isotopic signatures of CH4 and higher hydrocarbon gases from Precambrian Shield sites: A model for abiogenic polymerization of hydrocarbons
B. Sherwood Lollar,Georges Lacrampe-Couloume,K. Voglesonger,Tullis C. Onstott,Lisa M. Pratt,Greg F. Slater +5 more
TL;DR: In this paper, a model is proposed to account for carbon isotope variation between CH 4 and the higher hydrocarbon gases (specifically ethane, propane, butane, and pentane) consistent with abiogenic polymerization.