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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes

Abstract

Pub. Id: A156 (1989)

First Page: 471

Last Page: 500

Book Title: M 46: Extensional Tectonics and Stratigraphy of the North Atlantic Margins

Article/Chapter: Evolution of North Sea Rift System: Chapter 31: North Sea and Barents Shelf

Subject Group: Structure, Tectonics, Paleostructure

Spec. Pub. Type: Memoir

Pub. Year: 1989

Author(s): P. A. Ziegler (*), B. van Hoorn

Abstract:

The Mesozoic North Sea rift forms an integral part of the Arctic-North Atlantic rift system. Rifting activity in the North Sea commenced during the earliest Triassic, peaked during the Late Jurassic-earliest Cretaceous, and terminated during the Paleocene. During the early Middle Jurassic a major rift dome developed in the central North Sea. Geophysical data indicate an important discrepancy between upper and lower crustal thinning across the North Sea rift system. This raises doubts about the concept that during rifting the crust is thinned by mechanical stretching only. It is argued that during the rifting process the Moho-discontinuity can be seriously destabilized.

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