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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes


Pub. Id: A108 (1973)

First Page: 161

Last Page: 170

Book Title: M 19: Arctic Geology

Article/Chapter: Marine Geology of Atlantic Ocean North of the Arctic Circle: Regional Arctic Geology of the Nordic Countries

Subject Group: Geologic History and Areal Geology

Spec. Pub. Type: Memoir

Pub. Year: 1973

Author(s): G. L. Johnson (2), P. R. Vogt (2)


Magnetic and paleontologic data indicate that the Norwegian-Greenland sea opened about 60 m.y. ago with the initiation of sea-floor spreading along the axis of a midoceanic ridge. Within the Norwegian basin, evidence points toward an extinct ridge axis which shifted westward during the mid-Tertiary. Complex Iceland-style sea-floor spreading may have existed on the largely emergent Iceland plateau until about 10 m.y. ago, when Kolbeinsey Ridge became active.

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