The Rhenohercynian passive margin of SW England: Development, inversion and extensional reactivation

DSpace/Manakin Repository

Open Research Exeter (ORE)

The Rhenohercynian passive margin of SW England: Development, inversion and extensional reactivation

Show simple item record

dc.contributor.author Shail, R.K. en_US
dc.contributor.author Leveridge, B.E. en_US
dc.date.accessioned 2012-06-27T09:33:04Z en_US
dc.date.accessioned 2013-03-20T12:55:58Z
dc.date.issued 2009 en_US
dc.description.abstract The SW England Rhenohercynian passive margin initiated with rift-related non-marine sedimentation and bimodal magmatism (Late Lockhovian). Continued lithospheric extension resulted in the exhumation of mantle peridotites and limited seafloor spreading (Emsian-Eifelian). Variscan convergence commenced during the Late Eifelian and was coeval with rifting further north. Collision was marked by the Early Carboniferous emergence of deep marine sedimentary/volcanic rocks from the distal continental margin, oceanic lithosphere, pre-rift basement and upper plate gneisses (correlated with the Mid-German Crystalline High of the Saxothuringian Zone). Progressive inversion of the passive margin was strongly influenced by rift basin geometry. Convergence ceased in the Late Carboniferous and was replaced by an extensional regime that reactivated basin controlling/thrust faults and reorientated earlier fabrics (Start-Perranporth Zone). The resultant exhumation of the lower plate was accompanied by emplacement of the Early Permian SW England granites and was contemporaneous with upper plate sedimentary basin formation above the reactivated Rhenohercynian suture. The Rhenohercynian passive margin probably developed in a marginal basin north of the Rheic Ocean or, possibly, a successor basin following its closure. The Lizard ophiolite is unlikely to represent Rheic Ocean floor or associated forearc (SSZ) crust. The Rheic and Rhenohercynian sutures may be coincident or the Rheic suture may be located further south in the Leon Domain. en_GB
dc.identifier.citation 341 (2-3), pp. 140 - 155 en_GB
dc.identifier.doi 10.1016/j.crte.2008.11.002 en_US
dc.identifier.uri http://hdl.handle.net/10036/3631 en_US
dc.language.iso en en_GB
dc.publisher Elsevier Masson SAS en_GB
dc.relation.url http://dx.doi.org/10.1016/j.crte.2008.11.002 en_GB
dc.subject Variscan en_GB
dc.subject Rhenohercynian en_GB
dc.subject Passive margin en_GB
dc.subject Ophiolite en_GB
dc.subject Inversion en_GB
dc.subject Rheic en_GB
dc.subject Armorican microplate hypothesis en_GB
dc.subject Devonian paleomagnetic data en_GB
dc.subject Lizard ophiolite complex en_GB
dc.subject U-Pb ages en_GB
dc.subject South Cornwall en_GB
dc.subject Cornubian batholith en_GB
dc.subject Variscan structures en_GB
dc.subject Tectonic models en_GB
dc.subject Crustal rocks en_GB
dc.subject NW France en_GB
dc.title The Rhenohercynian passive margin of SW England: Development, inversion and extensional reactivation en_GB
dc.type Article en_GB
dc.date.available 2012-06-27T09:33:04Z en_US
dc.date.available 2013-03-20T12:55:58Z
dc.identifier.issn 1631-0713 en_US
exeter.contacts.depositing-owner-email Shail, Robin <R.K.Shail@exeter.ac.uk> en_US
exeter.contacts.owner-email Shail, Robin <R.K.Shail@exeter.ac.uk> en_US
dc.description Copyright © 2009 Academie des Sciences / Elsevier Masson SAS en_GB
dc.identifier.journal Comptes Rendus Geoscience en_GB
pubs.organisational-data /Symplectic Joint Venture en_US
pubs.organisational-data /Symplectic Joint Venture/Exeter en_US
pubs.organisational-data /Symplectic Joint Venture/Exeter/All Exeter Users en_US
pubs.organisational-data /Symplectic Joint Venture/Exeter/College of Engineering, Mathematics & Physical Sciences en_US
pubs.organisational-data /Symplectic Joint Venture/Exeter/College of Engineering, Mathematics & Physical Sciences/All Academic Staff (CEMPS) en_US
pubs.organisational-data /Symplectic Joint Venture/Exeter/College of Engineering, Mathematics & Physical Sciences/Camborne School of Mines en_US


Files in this item

Files Size Format View Description
Shail_&_Leveridge_final.pdf 894.0Kb PDF View/Open Post-print version

This item appears in the following Collection(s)

Show simple item record

Browse

My Account

Local Links