Tertiary development of the Faeroe-Rockall Plateau based on reflection seismic data

ts The Faeroe-Rockall Plateau is located in the NE Atlantic Ocean between Iceland and Scotland and is characterized by a late Paleocene-early Eocene basalt cover, which was extruded in association with the incipient opening of the NE Atlantic. The Faeroe-Rockall Plateau is separated from the NW Euro...

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Bibliographic Details
Main Authors: Lars Ole Boldreel, Morten Sparre Andersen
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Norwegian Sea
Greenland
Rockall Trough
Rockall Plateau
Iceland
North Atlantic
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.468.6851
http://2dgf.dk/xpdf/bull41-02-162-180.pdf
Description
Summary:ts The Faeroe-Rockall Plateau is located in the NE Atlantic Ocean between Iceland and Scotland and is characterized by a late Paleocene-early Eocene basalt cover, which was extruded in association with the incipient opening of the NE Atlantic. The Faeroe-Rockall Plateau is separated from the NW European continental shelf by the Rockall Trough and the Faeroe-Shetland Channel, whose nature and age is still debated. Reflector configuration within the basalt allows volcanic seismic facies interpretation to be carried out. The thickness of the basalt cover is estimated from reflection seismic data. Subbasalt geological structures are identified below subaerially extruded basalt on recently acquired as well as reprocessed seismic profiles. Overlying the basalt are early Eocene and younger sediments. The distribution of these sedi-ments is largely controlled by 1) the topography after the cessation of the volcanism, 2) the post volcanic subsidence of the area which is estimated from the depth to the breakpoints located on primary volcanic escarpments, 3) the Eocene-Miocene compressional tectonics which formed ridges, and minor basins, and 4) bottom currents of Norwegian Sea Deep Water (NSDW) which in the Neogene flowed into the North Atlantic south of the Greenland-Iceland-Faeroe-Scotland Ridge. A considerable part of the NSDW flows east arid south of the Faeroes and are controlled by the subsided volcanic basement and compressional structures.

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