Regional similarities in the distributions of well yield from crystalline rocks in Fennoscandia

Banks, D. , Gundersen, P., Gustafson, G., Mäkelä, J. and Morland, G. (2010) Regional similarities in the distributions of well yield from crystalline rocks in Fennoscandia. Norges Geologiske Undersokelse Bulletin, 450, pp. 33-47.

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Well yields from Precambrian and Palaeozoic bedrock in Norway, Sweden and Finland exhibit very similar and approximately log-normal distributions: all three data sets exhibit a median yield of 600–700 L hr-1, despite the differences in climate and lithology. This similarity is tentatively reflected on a larger geographical scale by a meta-analysis of the international data sets on crystalline rock aquifers from other recently glaciated areas (i.e., without a thick regolith of weathered rock). An heuristic treatment of the Fennoscandian data sets suggests that this median yield is consistent with the following bulk properties of shallow (to c. 70–80 m depth) crystalline bedrock: transmissivity of 0.56 ± 0.30 m2 d-1 (6.4 ± 3.4 x 10-6 m2 s-1) and hydraulic conductivity of around 1.1 (± 0.6) x 10-7 m s-1.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Banks, Mr David
Authors: Banks, D., Gundersen, P., Gustafson, G., Mäkelä, J., and Morland, G.
Subjects:Q Science > QE Geology
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Norges Geologiske Undersokelse Bulletin
Publisher:Norges Geologiske Undersoekelse
Copyright Holders:Copyright © 2010 NGU
First Published:First published in Norges Geologiske Undersokelse Bulletin 450:33-47
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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