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Biogenic components of the Baltic Sea sediments

E. M. Emelyanov
Biogenic components of the Baltic Sea sediments
Russian Geology and Geophysics (December 2014) 55 (12): 1404-1417


The contents of biogenic components in 1511 samples of the Baltic Sea sediments (depth range 0-5 cm) are studied, and maps of their distribution are compiled. The sediments contain < or = 13.03% C (sub org) , < or = 1.33% N, < or = 9.0% SiO (sub 2am) , < or = 5.0% CaCO (sub 3) , and < or = 1.45% P. The maximum and elevated contents of components are found in the mud of the sea deeps. The more fraction < 0.01 mm the sediments contain, the higher are the contents of components. Four facies types of carbonaceous mud, precursors of shales, have been recognized: (1) shallow-water (lagoon) lime sapropel, (2) carbonaceous mud of the shallow-water Gulf of Finland, (3) carbonaceous mud of the middle-depth Baltic Sea, and (4) laminated carbonaceous metal-bearing mud. The latter type of mud is strongly enriched in manganese and ore-forming trace elements, which points to its formation in the stagnant environment. In composition the Baltic Sea mud is similar to petroliferous mudstones of the Bazhenov Formation in West Siberia and to ancient black shales.

ISSN: 1068-7971
Serial Title: Russian Geology and Geophysics
Serial Volume: 55
Serial Issue: 12
Title: Biogenic components of the Baltic Sea sediments
Author(s): Emelyanov, E. M.
Affiliation: Russian Academy of Sciences, Shirshov Institute of Oceanology, Kaliningrad Division, Kaliningrad, Russian Federation
Pages: 1404-1417
Published: 201412
Text Language: English
Publisher: Allerton Press, New York, NY, United States
References: 45
Accession Number: 2021-062573
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sketch maps
N54°00'00" - N55°30'00", E14°40'00" - E17°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2021, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2021
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