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Postglacial carbonate production by cold-water corals on the Norwegian Shelf and their role in the global carbonate budget

Bjorn Lindberg and Juergen Mienert
Postglacial carbonate production by cold-water corals on the Norwegian Shelf and their role in the global carbonate budget
Geology (Boulder) (July 2005) 33 (7): 537-540

Abstract

Cold-water coral reefs have been neglected in calculations of global carbonate production. We present the first calculations of the amount of CaCO (sub 3) produced by cold-water corals on the Norwegian Shelf in postglacial time, showing that the reef-building Lophelia pertusa in Norwegian waters contributes approximately 54-188 g/m (super 2) /yr locally, or 0.03-0.38 g/m (super 2) /yr averaged over the entire shelf. These estimates indicate that cold-water reef CaCO (sub 3) flux is 4%-12% of the tropical reefs. A first tentative global estimate indicates that cold-water coral CaCO (sub 3) production could add >1% to the total marine CaCO (sub 3) production. The spatial and temporal evolution of cold-water reefs, and thus their influence on atmospheric CO (sub 2) , is difficult to reconstruct, but factors that dominantly influence the rate of coral growth include sea-level and oceanographic changes, submarine slides, and anthropogenic activity. The results show that other shelf and slope environments should be assessed in a similar manner to further constrain and evaluate the global CaCO (sub 3) production by cold-water corals and their possible contribution to the CaCO (sub 3) budget.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 33
Serial Issue: 7
Title: Postglacial carbonate production by cold-water corals on the Norwegian Shelf and their role in the global carbonate budget
Affiliation: University of Tromso, Department of Geology, Tromso, Norway
Pages: 537-540
Published: 200507
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 46
Accession Number: 2005-047993
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch map
N58°00'00" - N71°00'00", E04°00'00" - E31°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200530
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