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Sediment rates and structures in Bay of Kiel, Baltic Sea

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Pertenece a: PANGAEA - Publishing Network for Geoscientific & Environmental Data  

Descripción: 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.

Autor(es): Werner, Friedrich - 

Id.: 55201675

Idioma: English  - 

Versión: 1.0

Estado: Final

Tipo:  application/zip, 6 datasets - 

Palabras claveAL19xx -  Alkor -  Bay of Kiel, Baltic Sea -  Calculated -  Eckernfoerder Bay, Western Baltic Sea -  GIK10012 -  1 -  GIK10058 -  4 -  GIK10872 -  GIK11347 -  GIK12888 -  Gravity corer -  Hermann Wattenberg -  Kasten corer -  Kasten corer 15 cm -  LI197x -  Lithology -  Lithology/composition/facies -  Littorina -  LT Falshöft, Kieler Bucht -  Piston corer (Kiel type) -  PL69 -  Planet II (1967 -  2004) -  Sedimentation rate per year -  Sedim rate -  Vejsnaes Channel, Kiel Bay -  Vejsnäs Rinne, Westende -  Visual description -  WA197x - 

Cobertura:  MEDIAN LATITUDE: 54.721467 * MEDIAN LONGITUDE: 10.324924 * SOUTH-BOUND LATITUDE: 54.433333 * WEST-BOUND LONGITUDE: 10.038167 * NORTH-BOUND LATITUDE: 55.518333 * EAST-BOUND LONGITUDE: 10.667000 - 

Tipo de recurso: Dataset  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: CC-BY: Creative Commons Attribution 3.0 Unported

Formatos:  application/zip, 6 datasets - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Supplement to: Werner, Friedrich (2002): Bioturbation structures in marine Holocene sediments of Kiel Bay (Western Baltic). Meyniana, 54, 41-72, doi:10.2312/meyniana.2002.54.41

Fecha de contribución: 20-jul-2014


* doi:10.1594/PANGAEA.779314

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