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Petroleum generation and migration in the Cambro-Ordovician Laurentian margin succession of NW Scotland

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Parnell_2018_JGS_Petroleumgeneration_CC.pdf (2.465Mb)
Date
01/2018
Author
Parnell, John
Bowden, Stephen
Mark, Darren
Keywords
GE Environmental Sciences
QE Geology
NDAS
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Abstract
Fluid inclusion and organic biomarker data show that there was formerly a hydrocarbon system in the Cambro-Ordovician Laurentian margin rocks of NW Scotland. Oil fluid inclusions occur in stylolitized Eriboll Formation sandstone, in K-feldspar cements with an 40Ar/39Ar age of 415 ± 5.5/5.8 Ma (2σ, analytical precision/full external precision). Organic extracts from Durness Group black limestones yield biomarker ratios characteristic of high thermal maturity. Organic maturation to yield oil probably occurred during orogenic deformation along the Moine Thrust Zone. The recognition of a hydrocarbon system in Scotland adds to a huge hydrocarbon province in Laurentian rocks including North America and Greenland.
Citation
Parnell , J , Bowden , S & Mark , D 2018 , ' Petroleum generation and migration in the Cambro-Ordovician Laurentian margin succession of NW Scotland ' , Journal of the Geological Society , vol. 175 , no. 1 , pp. 33-43 . https://doi.org/10.1144/jgs2017-059
Publication
Journal of the Geological Society
Status
Peer reviewed
DOI
https://doi.org/10.1144/jgs2017-059
ISSN
0016-7649
Type
Journal article
Rights
© 2018 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/).
Description
NERC is thanked for continued funding of the Argon Isotope facility, which is housed at SUERC. D.M. was in receipt of a NERC PhD studentship.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/12610

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