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.

Abstract

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
• Status: Published
• Refereed: Yes
• 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
• ISSN: 0332-5768
• 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