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Broad region of no sediment in the southwest Pacific Basin

David K. Rea, Mitchell W. Lyle, Lee M. Liberty, Steven A. Hovan, Matthew P. Bolyn, James D. Gleason, Ingrid L. Hendy, Jennifer C. Latimer, Brandi M. Murphy, Robert M. Owen, Christopher F. Paul, Thomas H. C. Rea, Andrea M. Stancin and Deborah J. Thomas
Broad region of no sediment in the southwest Pacific Basin
Geology (Boulder) (October 2006) 34 (10): 873-876


A broad region, nearly the size of the Mediterranean Sea, exists in the central South Pacific Ocean that is devoid of sediment and has been so since the Late Cretaceous. The requirements for remaining sediment free are very low biological productivity, a shallow calcite compensation depth, essentially no dust input, and no deposition of hydrothermal oxides and hydroxides. One or two of these conditions are common, but nowhere else do all four occur. The combined effect of these sediment-inhibiting factors is a consequence of crustal age, seawater chemistry, and atmospheric, oceanographic, and physiographic isolation. Furthermore, this unique combination of conditions has prevailed for more than 80 million years.

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 34
Serial Issue: 10
Title: Broad region of no sediment in the southwest Pacific Basin
Affiliation: University of Michigan, Department of Geological Sciences, Ann Arbor, MI, United States
Affiliation: South Pacific Latitudinal Transect (SPLAT) Survey and Coring TeamUnited States
Pages: 873-876
Published: 200610
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 18
Accession Number: 2006-083969
Categories: OceanographyApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., sketch map
Secondary Affiliation: Boise State University, USA, United StatesIndiana University of Pennsylvania, USA, United StatesTexas A&M University, USA, United States
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: 200647
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