Sediment rates and structures in Bay of Kiel, Baltic Sea
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2012
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| _version_ | 1867169505565736960 |
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| author | Werner, Friedrich |
| author_facet | Werner, Friedrich |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Density and diversity of bottom fauna population as dependent on sediment types and water depth is largely well known in Kiel Bay. This is in contrast to structures and processes of bioturbation, although generally it has a big influence on the benthic boundary layer and its processes, e.g., the metabolism of the bottom fauna, the mechanical properties, the age dating, and the large field of chemical processes. In the densely inhabited sands and muddy sands of the shallower waters with sediment thicknesses of some decimeters only, bioturbation is usually ubiquitous, and most of the structures left are monotonously of "biodeformational" character. At greater water depths, however, where a sedimentary column of several meters of Holocene is developed, the X-ray radiographs of numerous sediment cores show heterogeneous biogenic structures with regional and stratigraphical differentiation. They are described in terms of ichnofabrics and are interpreted on ethological knowledge of the related macrobenthos species. lmportant organisms creating specific traces include the bivalve Arctica (Cyprina) islandica and the polychaete worm Pectinaria koreni. These species are abundant in Kiel Bay and produce by their crawling-plowing mode of locomotion, a characteristic biogenic stratification, the "plow-sole structure". Other typical biogenic structures are tube traces, which are left by a number of different polychaetes occurring either singly, or as U-pairs mainly in mud sediments. Although sea urchins are rare to absent in Kiel Bay, layers of their characteristic traces Scolicia occur as witness of paleohydrographic events in channel sediments of the central bay. Plow-sole traces, polychaete-tube ichnofabric, Scolicia layers and alternations of laminated and bioturbated layers are considered as building blocks of a future "ichnostratigraphy" of Kiel Bay. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_779314 |
| institution | PANGAEA |
| language | en |
| publishDate | 2012 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Sediment rates and structures in Bay of Kiel, Baltic Sea Werner, Friedrich AL19xx; Alkor (1965); Bay of Kiel, Baltic Sea; Eckernfoerder Bay, Western Baltic Sea; GC; GIK10012-1; GIK10058-1; GIK10058-4; GIK10872-1; GIK11347-1; GIK12888-1; Gravity corer; Hermann Wattenberg; KAL; KAL15; Kasten corer; Kasten corer 15 cm; KOL; LI197x; Littorina; LT Falshöft, Kieler Bucht; Piston corer (Kiel type); PL69; Planet II (1967-2004); Vejsnaes Channel, Kiel Bay; Vejsnäs Rinne, Westende; WA197x Density and diversity of bottom fauna population as dependent on sediment types and water depth is largely well known in Kiel Bay. This is in contrast to structures and processes of bioturbation, although generally it has a big influence on the benthic boundary layer and its processes, e.g., the metabolism of the bottom fauna, the mechanical properties, the age dating, and the large field of chemical processes. In the densely inhabited sands and muddy sands of the shallower waters with sediment thicknesses of some decimeters only, bioturbation is usually ubiquitous, and most of the structures left are monotonously of "biodeformational" character. At greater water depths, however, where a sedimentary column of several meters of Holocene is developed, the X-ray radiographs of numerous sediment cores show heterogeneous biogenic structures with regional and stratigraphical differentiation. They are described in terms of ichnofabrics and are interpreted on ethological knowledge of the related macrobenthos species. lmportant organisms creating specific traces include the bivalve Arctica (Cyprina) islandica and the polychaete worm Pectinaria koreni. These species are abundant in Kiel Bay and produce by their crawling-plowing mode of locomotion, a characteristic biogenic stratification, the "plow-sole structure". Other typical biogenic structures are tube traces, which are left by a number of different polychaetes occurring either singly, or as U-pairs mainly in mud sediments. Although sea urchins are rare to absent in Kiel Bay, layers of their characteristic traces Scolicia occur as witness of paleohydrographic events in channel sediments of the central bay. Plow-sole traces, polychaete-tube ichnofabric, Scolicia layers and alternations of laminated and bioturbated layers are considered as building blocks of a future "ichnostratigraphy" of Kiel Bay. |
| title | Sediment rates and structures in Bay of Kiel, Baltic Sea |
| topic | AL19xx; Alkor (1965); Bay of Kiel, Baltic Sea; Eckernfoerder Bay, Western Baltic Sea; GC; GIK10012-1; GIK10058-1; GIK10058-4; GIK10872-1; GIK11347-1; GIK12888-1; Gravity corer; Hermann Wattenberg; KAL; KAL15; Kasten corer; Kasten corer 15 cm; KOL; LI197x; Littorina; LT Falshöft, Kieler Bucht; Piston corer (Kiel type); PL69; Planet II (1967-2004); Vejsnaes Channel, Kiel Bay; Vejsnäs Rinne, Westende; WA197x |
| url | https://doi.org/10.1594/PANGAEA.779314 |