The post-caledonian geological development of svalbard and the western barents sea
|Category||Paleontology and Stratigraphy|
|Location||International Geological Congress,oslo 2008|
|Holding Date||10 September 2008|
The Barents Shelf, stretching from the Arctic Ocean to the coasts of northern Norway and Russia and from the Norwegian-Greenland Sea to Novaja Zemlya, covers two major geological provinces. This review concentrates on the western province, with its complex mosaic of basins and platforms. A growing net of coverage by seismic data, almost 70 deep hydrocarbon exploration wells and a series of shallow coring programmes have contributed greatly to our understanding of this province, supplementing information from neighbouring land areas. The late Paleozoic to present-day development of the region can be described in terms of 5 major depositional phases. These partly reflect the continuous northwards movement of this segment of the Eurasian Plate from the equatorial zone in the mid-Devonian to early Carboniferous up to its present-day high Arctic latitudes, resulting in significant climatic changes through time.
Important tectonic controls on sedimentation have been imposed by the ongoing interplay of varying processes along the shelf’s eastern, northern and western margins, while both short- and long-term local and regional sea-level variations have further controlled the province’s depositional history.