Shale gas investigations in Denmark: Lower Palaeozoic shales on Bornholm

The Cambrian to Lower Silurian succession in Denmark is mostly composed of organic-rich black shales that were deposited in an epicontinental sea during a period of high global sea level (Haq & Schutter 2008). The mid-Cambrian to early Ordovician Alum Shale was intensively studied in the 1980s f...

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Bibliographic Details
Published in:GEUS Bulletin 2011-01, Vol.23, p.9-12
Main Authors: Hemmingsen Schovsbo, Niels, Thorshøj Nielsen, Arne, Klitten, Kurt, Mathiesen, Anders, Rasmussen, Per
Format: Article
Language:English
Subjects:
Cambrian
Exploitation
Ordovician
Paleozoic
Rock properties
Sea level
Shales
Silurian
Succession
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Summary:The Cambrian to Lower Silurian succession in Denmark is mostly composed of organic-rich black shales that were deposited in an epicontinental sea during a period of high global sea level (Haq & Schutter 2008). The mid-Cambrian to early Ordovician Alum Shale was intensively studied in the 1980s for its source-rock properties (e.g. Buchardt et al. 1986). Recent attention has focused on its potential as an unconventional shale gas source (Energistyrelsen 2010). On southern Bornholm, many wells have been drilled through the Lower Palaeozoic succession because of its importance for groundwater exploitation. In western Denmark, only the deep exploration wells Slagelse-1 and Terne-1 have penetrated the Alum Shale, and knowledge of the unit west of Bornholm is thus very limited (Fig. 1).
ISSN:1904-4666
1604-8156
2597-2154
DOI:10.34194/geusb.v23.4794