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Permanent link (DOI): https://doi.org/10.7939/R3SF2MB9H

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Subsurface temperature signature of a large Pleistocene - Holocene surface warming in the North Alberta, Canada Open Access

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Author or creator
Majorowicz, J.
Šafanda, J.
Gosnold, W
Unsworth, M.
Additional contributors
Subject/Keyword
thermal gradient
geothermal energy
geochemical testing
Type of item
Research Material
Language
English
Place
Time
Description
Recent results from a 2.3km deep temperature log in northern Alberta, Canada acquired as part of the University of Alberta Helmholtz-Alberta Initiative (HAI) geothermal energy project in 2010-2011shows that there is a significant increase in thermal gradient in the granites. Inversion of the measured T-z profile between 550 - 2320 m indicates a temperature increase of 9.6 ± 0.3 °C, at 13.0 ± 0.6 ka and that the glacial base surface temperature was - 4.4± 0.3 °C. This inversion computation accounted for granite heat production of 3 µW/m3. This is the largest amplitude of Pleistocene - Holocene surface warming in Canada inferred from borehole temperature logs, and is compatible with the results of similar studies in Eurasia (KTB, Outokumpu, Torun-1 etc.) reported previously.
Date created
2012
DOI
doi:10.7939/R3SF2MB9H
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© 2012 Copernicus. The version of this abstract is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
Majorowicz, J., Šafanda, J., Gosnold, W. & Unsworth, M. 2012. Subsurface temperature signature of a large Pleistocene - Holocene surface warming in the North Alberta, Canada, Geophysical Research Abstracts Vol. 14, EGU2012-6252, 2012 EGU General Assembly 2012.
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