Early Tertiary volcanism at the western Barents Sea margin
Authors:
- 1 January 1988
- journal article
- Published by Geological Society of London in Geological Society, London, Special Publications
- Vol. 39 (1) , 135-146
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:
- Deep seismic reflection profiles across the western Barents SeaGeophysical Journal International, 1987
- Stratigraphic and Structural Predictions from a Plate-Tectonic Model of an Oblique-Slip Orogen1985
- Evolution of the western Barents SeaMarine and Petroleum Geology, 1984
- Wandel Sea Basin — The North Greenland equivalent to Svalbard and the Barents Shelf1984
- The Askeladden gas find — Troms I1984
- Structural highs and basins in the western Barents Sea1984
- Tertiary structural development of the western Barents Shelf: Troms to Svalbard1984
- The margin between Senja and Spitsbergen fracture zones: Implications from plate tectonicsTectonophysics, 1982
- Continental margin off Lofoten-Vester len northern NorwayMarine Geophysical Research, 1979
- Evolution of the Norwegian-Greenland SeaGeological Society of America Bulletin, 1977