The Jan Mayen microplate complex and the Wilson cycle

Journal article


Schiffer, Christian, Peace, Alexander, Phethean, Jordan, Gernigon, Laurent, McCaffrey, Ken, Petersen, Kenni D. and Foulger, Gillian 2018. The Jan Mayen microplate complex and the Wilson cycle. Geological Society Special Publications. 470 (1), pp. 393-414. https://doi.org/10.1144/sp470.2
AuthorsSchiffer, Christian, Peace, Alexander, Phethean, Jordan, Gernigon, Laurent, McCaffrey, Ken, Petersen, Kenni D. and Foulger, Gillian
Abstract

The opening of the North Atlantic region was one of the most important geodynamic events that shaped the present day passive margins of Europe, Greenland and North America. Although well-studied, much remains to be understood about the evolution of the North Atlantic, including the role of the Jan Mayen microplate complex. Geophysical data provide an image of the crustal structure of this microplate and enable a detailed reconstruction of the rifting and spreading history. However, the mechanisms that cause the separation of microplates between conjugate margins are still poorly understood. We assemble recent models of rifting and passive margin formation in the North Atlantic and discuss possible scenarios that may have led to the formation of the Jan Mayen microplate complex. This event was probably triggered by regional plate tectonic reorganizations rejuvenating inherited structures. The axis of rifting and continental break-up and the width of the Jan Mayen microplate complex were controlled by old Caledonian fossil subduction/suture zones. Its length is related to east–west-oriented deformation and fracture zones, possibly linked to rheological heterogeneities inherited from the pre-existing Precambrian terrane boundaries.

KeywordsGeology; Ocean Engineering; Water Science and Technology
Year2018
JournalGeological Society Special Publications
Journal citation470 (1), pp. 393-414
PublisherGeological Society of London
ISSN0305-8719
2041-4927
Digital Object Identifier (DOI)https://doi.org/10.1144/sp470.2
Web address (URL)http://hdl.handle.net/10545/624258
hdl:10545/624258
Publication dates01 Feb 2018
Publication process dates
Deposited28 Oct 2019, 09:53
Accepted2018
ContributorsDurham University, Memorial University of Newfoundland, Canada, Geological Survey of NorwayLeiv and Aarhus University8000 Aarhus, Denmark
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