Sedmentation in the Central Baltic Sea as Viewed by Non-Destructive Pb-210-dating
Bibliographic Data
| ID | 9849400 |
|---|---|
| Authors | Helmar Kunzendorf (a Gamma Dating Center, Plant Biology and Biogeochemistry Department, Risø National Laboratory , PBK-124, P.O. Box 49, DK-4000 , Roskilde , Denmark), Kay-Christian Emeis (b Baltic Sea Research Institute, Marine Geology Department , Seestr. 15, D-18119 , Rostock , Germany), Kay‐Christian Emeis (0000-0003-0459-913X, Leibniz Institute for Baltic Sea Research Warnemünde), Christian Christiansen (University of Copenhagen), Christian Fynbo Christiansen (0000-0002-0727-953X, Geocenter Denmark) |
| Year | 1998 |
| Volume | 98 |
| Issue | 1 |
| Pages | 1-9 |
| Publication date | 1998-01-01 |
| Peer Reviewed | Yes |
| Open Access | No |
| Type | ARTICLE |
| Venue | Geografisk Tidsskrift-Danish Journal of Geography (JOURNAL) |
| Journal identifiers | ISSN: 0016-7223 • E-ISSN: 1903-2471 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/00167223.1998.10649405 |
| OpenAlex | W2033359010 |
| Language | EN |
| Citations received | 9 |
| References cited | 3 |
Geografisk Tidsskrift, Danish Journal of Geography 98:1–9. A non-destructive gamma-spectrometric method was used to assay the sedimentation in the central Baltic Sea. Three cores from the Gotland Deep with water depths exceeding 230 m showed relatively high Pb-210 and Cs-137 but relatively little variation between cores in the curves for unsupported Pb-210. A constant rate of supply (CRS) modelling of the data revealed that there is a tendency of increasing linear sedimentation rates, from 0.5 to 2 mm a−1, since 1950. With the measured bulk density profiles this is accompanied by increasing sediment accumulation rates (from about 200 to 600 g m−2 a−1) There are generally moderately increased Cs-137 values found in the deep and these may mainly be ascribed to the Chernobyl accident. A core from the central Gdansk Basin taken at a water depth of 117 m shows relatively lower Pb-210 values and a more structured unsupported Pb-210 distribution with depth. A very high activity (about 4000 Bq kg−1) sediment slice (8–9 cm depth) can according to the CRS modelling be ascribed to year 1986. The high activity, however, was found to be confined to a small part of the sediment slice material and therefore this has some bearing on the depositional mechanism of Cs-137 in the sediments
Baltic sea · Geochemistry · Geography · Geomorphology · Mineralogy · Physical geography · Sediment · Sediment core · Sedimentary depositional environment · Sedimentation · Structural basin · Geological formations and processes · Geology · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Oceanography
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| Unique citing works | 9 |
|---|---|
| Citations per year | 0,35 |
| Citation span | 2000 - 2007 (8) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 8 |