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Physiographic provinces of the Arctic Ocean seafloor

Martin Jakobsson, Arthur Grantz, Yngve Kristoffersen and Ron Macnab
Physiographic provinces of the Arctic Ocean seafloor
Geological Society of America Bulletin (December 2003) 115 (12): 1443-1455

Abstract

The International Bathymetric Chart of the Arctic Ocean (IBCAO) grid model has been used to define the first-order physiographic provinces of the Arctic Ocean, which in this study is taken to consist of the oceanic deep Arctic Ocean Basin; the broad continental shelves of the Barents, Kara, Laptev, East Siberian, and Chukchi Seas; the White Sea; and the narrow continental shelves of the Beaufort Sea and the Arctic continental margins of the Canadian Arctic Archipelago and northern Greenland. The first step in this classification is an evaluation of seafloor gradients contained in a slope model that was derived from the IBCAO grid. The evaluation of this slope model, which emphasizes certain process-related seafloor features that are reflected in the bathymetric information, is subsequently used along with the bathymetry to classify the first-order physiographic provinces. The areas of the provinces so classified are individually calculated, and their morphologies are subsequently discussed in the context of the geologic evolution of the Arctic Ocean Basin as described in the published literature. In summary, this study provides a physiographic classification of the Arctic Ocean seafloor according to the most up-to-date bathymetric model, addresses the geologic origin of the prominent features, and provides area computations of the defined first-order physiographic provinces and of the most prominent second- order features.


ISSN: 0016-7606
EISSN: 1943-2674
Coden: BUGMAF
Serial Title: Geological Society of America Bulletin
Serial Volume: 115
Serial Issue: 12
Title: Physiographic provinces of the Arctic Ocean seafloor
Affiliation: University of New Hampshire, Center for Coastal and Ocean Mapping, Durham, NH, United States
Pages: 1443-1455
Published: 200312
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 50
Accession Number: 2004-003384
Categories: Oceanography
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sketch maps
N70°00'00" - N90°00'00", W180°00'00" - E180°00'00"
Secondary Affiliation: Stanford University, USA, United StatesUniversity of Bergen, NOR, NorwayGeological Survey of Canada, CAN, Canada
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200401
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