Fault-charged mantle-fluid contamination of United Kingdom North Sea oils: Insights from Re-Os isotopes: Figure 1.

Research Article| November 01, 2010 Fault-charged mantle-fluid contamination of United Kingdom North Sea oils: Insights from Re-Os isotopes Alexander J. Finlay; Alexander J. Finlay * 1Department of Earth Sciences, Durham University, Science Laboratories, Durham DH1 3LE, UK *E-mails: a.j.finlay@durham.ac.uk; david.selby@durham.ac.uk; mark.osborne@uk.bp.com; dan.finucane@uk.bp.com. Search for other works by this author on: GSW Google Scholar David Selby; David Selby * 1Department of Earth Sciences, Durham University, Science Laboratories, Durham DH1 3LE, UK *E-mails: a.j.finlay@durham.ac.uk; david.selby@durham.ac.uk; mark.osborne@uk.bp.com; dan.finucane@uk.bp.com. Search for other works by this author on: GSW Google Scholar Mark J. Osborne; Mark J. Osborne * 2BP, Exploration & Production Technology, Sunbury-on-Thames, Middlesex TW16 7LN, UK *E-mails: a.j.finlay@durham.ac.uk; david.selby@durham.ac.uk; mark.osborne@uk.bp.com; dan.finucane@uk.bp.com. Search for other works by this author on: GSW Google Scholar Dan Finucane Dan Finucane * 2BP, Exploration & Production Technology, Sunbury-on-Thames, Middlesex TW16 7LN, UK *E-mails: a.j.finlay@durham.ac.uk; david.selby@durham.ac.uk; mark.osborne@uk.bp.com; dan.finucane@uk.bp.com. Search for other works by this author on: GSW Google Scholar Geology (2010) 38 (11): 979–982. https://doi.org/10.1130/G31201.1 Article history received: 10 Mar 2010 rev-recd: 09 Jun 2010 accepted: 11 Jun 2010 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Alexander J. Finlay, David Selby, Mark J. Osborne, Dan Finucane; Fault-charged mantle-fluid contamination of United Kingdom North Sea oils: Insights from Re-Os isotopes. Geology 2010;; 38 (11): 979–982. doi: https://doi.org/10.1130/G31201.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract United Kingdom North Sea oils sourced from the Kimmeridge Clay Formation contain unradiogenic (∼0.17 to ∼0.48) and radiogenic (∼1.04 to ∼3.34) 187Os/188Os values. The unradiogenic 187Os/188Os values are spatially associated with the main basin-bounding faults of the Viking Graben and East Shetland Basin. In contrast, the radiogenic 187Os/188Os values are associated with North Sea basins located farther away from the basin boundary faults. We suggest that crustal thinning and strain localization within the Viking Graben and East Shetland Basin are sufficient to have allowed basin-bounding faults to propagate to sufficient depth to act as conduits for mantle-derived fluids to interact with oil. This hypothesis is supported by previous geochemical data for North Sea oil fields. Furthermore, we demonstrate the use of Os isotopes as an important tracker of crustal-scale fluid dynamics and petroleum migration pathways in extensional basins. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.