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Iberian plate kinematics: A jumping plate boundary between Eurasia and Africa

Nature

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, , , , , , and

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Abstract

THE rotation of Iberia and its relation to the formation of the Pyrenees has been difficult to decipher because of the lack of detailed sea-floor spreading data, although several models have been proposed1-7. Here we use detailed aeromagnetic measurements from the sea floor offshore of the Grand Banks of Newfoundland to show that Iberia moved as part of the African plate from late Cretaceous to mid-Eocene time, with a plate boundary extending westward from the Bay of Biscay. When motion along this boundary ceased, a boundary linking extension in the King's Trough to compression along the Pyrenees came into existence. Finally, since the late Oligocene, Iberia has been part of the Eurasian plate, with the boundary between Eurasia and Africa situated along the Azores-Gibraltar fracture zone.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Iberian plate kinematics: A jumping plate boundary between Eurasia and Africa
Series title:
Nature
Volume
344
Issue:
6268
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Nature
First page:
756
Last page:
759