Early Tertiary volcanism at the western Barents Sea margin

1 January 1988

journal article
Published by Geological Society of London in Geological Society, London, Special Publications

Vol. 39 (1) , 135-146
https://doi.org/10.1144/gsl.sp.1988.039.01.13

Abstract

Summary: The western Barents Sea margin is composed of two regional shear segments linked by a NE-trending rifted margin SW of Bjørnøya. The primary marginal structures developed in response to the Cainozoic opening of the Norwegian-Greenland Sea. A marginal high characterizes the rifted margin segment. It is suggested that the high forms an edifice of subaerial extrusives emplaced during the initial opening of the southern Greenland Sea in the early Eocene. The extrusives also cover the adjacent continental crust and the volcanic event may have caused the deposition of tuffs in the basinal province of the southwestern Barents Sea. Renewed local volcanic activity in the early Oligocene is related to the major reorganization in plate motion at this time.

Keywords

This publication has 15 references indexed in Scilit:

Evolution of the western Barents Sea
Published by Elsevier ,2003
Deep seismic reflection profiles across the western Barents Sea
Geophysical Journal International, 1987
THE TERTIARY STRIKE-SLIP BASINS AND OROGENIC BELT OF SPITSBERGEN
Published by Society for Sedimentary Geology ,1985
Wandel Sea Basin — The North Greenland equivalent to Svalbard and the Barents Shelf
Published by Springer Nature ,1984
The Askeladden gas find — Troms I
Published by Springer Nature ,1984
Structural highs and basins in the western Barents Sea
Published by Springer Nature ,1984
Tertiary structural development of the western Barents Shelf: Troms to Svalbard
Published by Springer Nature ,1984
The margin between Senja and Spitsbergen fracture zones: Implications from plate tectonics
Tectonophysics, 1982
Continental margin off Lofoten-Vester len northern Norway
Marine Geophysical Research, 1979
Evolution of the Norwegian-Greenland Sea
GSA Bulletin, 1977