--> Abstract: Maps Showing Location, Tectonic Character and Structural Setting of the Sedimentary Basins of the Arctic Region (65°-90°N; #90063 (2007)

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Maps Showing Location, Tectonic Character and Structural Setting of the Sedimentary Basins of the Arctic Region (65°-90°N. lat.)

 

Grantz, Arthur1, Robert Scott2, Sergey Drachez3, Thomas E. Moore4, James P. Howard5 (1) Consulting Geologist, Palo Alto, CA (2) CASP, Cambridge University, Cambridge, England (3) Exxon Mobil Corperation, Moscow, Russia (4) US Geological Survey, Menlo Park, CA (5) CASP, University of Cambridge, Cambridge, United Kingdom

 

One hundred and four sedimentary provinces in several types of basins, stable shelves or platforms, prograded sedimentary prisms, foreland basins and continental ridge-top sedimentary sections have been identified in the Arctic Region. More than half are known, or thought likely, to contain petroleum accumulations. The outlines of the sedimentary provinces (“basins”), classified by their first order tectonic character, are displayed on a bathymetric map of the Arctic in four quadrants at 1:3,000,000. Major structural or tectonic features associated with the creation of the basins, or with the enhancement or degradation of their petroleum potential, are also shown. Thickness of the sedimentary section in the provinces, or of selected intervals thereof, are shown by isopachs where these are available.

 

The oceanic basins of the Arctic are bordered by passive margins overlain by commonly thick prograded sedimentary prisms and contain the major Lena and Mackenzie delta systems. These deltas deposited two large sedimentary prisms of Cenozoic age in the Eurasia Basin and a major sedimentary accumulation of mid-Early Cretaceous to Neogene age in the Canada Basin of the Arctic Ocean. Onshore the Arctic Ocean is ringed by 14 large sedimentary basins, many known to be petroliferous, from Arctic Alaska on the west to the West Siberian Basin and Yenisey-Khatanga Trough on the east. In addition, numerous smaller riftogenic and extensional basins underlie the margins of the Labrador Sea, Baffin Bay, the North Atlantic, Canada Basin, eastern Siberia and its continental shelf and western Alaska.

 

AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California