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Autores principales:	Suess, Erwin, Erlenkeuser, Helmut
Formato:	Dataset Open Access
Lenguaje:	en
Publicado:	PANGAEA 1975
Materias:	Baltic Sea; BCR; Bornholm 1974; Box corer (Reineck); GIK10193-2; PL5/74; Planet II (1967-2004)
Acceso en línea:	https://doi.org/10.1594/PANGAEA.783800
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

_version_	1867170462669209600
author	Suess, Erwin Erlenkeuser, Helmut
author_facet	Suess, Erwin Erlenkeuser, Helmut
collection	Datos científicos de ciencias marinas y ambientales
contents	Concentrations of Cd, Pb, Zn, Cu, Co, Ni, Fe, and Al203, water content, the amounts of organic carbon, the ratio of 13C/12C and the 14C-activity of the organic fraction were determined with sediment depth from a 34 cm long box-core from the Bornholm Basin (Baltic Sea). The average sedimentation rate was 2.4 mm/yr. The upper portion of the core contained increasing amounts of 14C-inactive organic carbon, and above 3 cm depth, man-made 14C from atomic bomb tests. The concentrations of the heavy metals Cd, Pb, Zn, and Cu increase strongly towards the surface, while other metals, as Fe, Ni and Co remain almost unchanged. This phenomenon is attributed to anthropogenic influences. A comparison of the Kieler Bucht, the Bornholm and the Gotland Basins shows that today the anthropogenic addition of Zn is about 100 mg/m**2 yr in all three basins. The beginning of this excess of Zn, however, is delayed by about 20 years in, the Bornholm Basin and by about 40 years in the Gotland Basin. It is suggested that SW-NE transport of these anthropogenically mobilized metals may be related to periodic bottom water renewal in the Baltic Sea sedimentary basins.
format	Dataset Open Access
id	pangaea_https___doi_org_10_1594_PANGAEA_783800
institution	PANGAEA
language	en
publishDate	1975
publisher	PANGAEA
record_format	pangaea
spellingShingle	Geochemistry, carbon isotope ratio and radiocarbon ages of sediment core GIK1093-2 from Bornholm Basin, Baltic Sea Suess, Erwin Erlenkeuser, Helmut Baltic Sea; BCR; Bornholm 1974; Box corer (Reineck); GIK10193-2; PL5/74; Planet II (1967-2004) Concentrations of Cd, Pb, Zn, Cu, Co, Ni, Fe, and Al203, water content, the amounts of organic carbon, the ratio of 13C/12C and the 14C-activity of the organic fraction were determined with sediment depth from a 34 cm long box-core from the Bornholm Basin (Baltic Sea). The average sedimentation rate was 2.4 mm/yr. The upper portion of the core contained increasing amounts of 14C-inactive organic carbon, and above 3 cm depth, man-made 14C from atomic bomb tests. The concentrations of the heavy metals Cd, Pb, Zn, and Cu increase strongly towards the surface, while other metals, as Fe, Ni and Co remain almost unchanged. This phenomenon is attributed to anthropogenic influences. A comparison of the Kieler Bucht, the Bornholm and the Gotland Basins shows that today the anthropogenic addition of Zn is about 100 mg/m**2 yr in all three basins. The beginning of this excess of Zn, however, is delayed by about 20 years in, the Bornholm Basin and by about 40 years in the Gotland Basin. It is suggested that SW-NE transport of these anthropogenically mobilized metals may be related to periodic bottom water renewal in the Baltic Sea sedimentary basins.
title	Geochemistry, carbon isotope ratio and radiocarbon ages of sediment core GIK1093-2 from Bornholm Basin, Baltic Sea
topic	Baltic Sea; BCR; Bornholm 1974; Box corer (Reineck); GIK10193-2; PL5/74; Planet II (1967-2004)
url	https://doi.org/10.1594/PANGAEA.783800

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