Density of 9 sediment cores from the Weddell Sea ...
The wet bulk density is one of the most important parameters of the physical and geological properties of marine sediments. The density is connected directly with sedimentation history and a few sedirnent properties. Knowledge of the fine scale density-depth structure is the base for many model calc...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
1993
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| Online Access: | https://dx.doi.org/10.1594/pangaea.818320 https://doi.pangaea.de/10.1594/PANGAEA.818320 |
| Summary: | The wet bulk density is one of the most important parameters of the physical and geological properties of marine sediments. The density is connected directly with sedimentation history and a few sedirnent properties. Knowledge of the fine scale density-depth structure is the base for many model calculations, for both sedimentological and palaeoclimatic research. A density measurement system was designed and built at the Alfred Wegener Institute in Bremerhaven for measuring the wet buk density of sediment cores with high resolution in a non-destructive way. The density is deterrnined by measuring the absorption of Gamma-rays in the sediment. This principle has been used since the 50's in materials research and in the geosciences. In the present case, Cs137 is used as the radioactive source and the intensity is measured by a detector system (scintillator and photomultiplier). Density values are obtainable in both longitudinal core sections and planar cross-sections (the latter are a function of the axial ... : Supplement to: Gerland, Sebastian (1993): Zerstörungsfreie hochauflösende Dichteuntersuchungen mariner Sedimente (Non-destructive high resolution density measurements on marine sediments). Berichte zur Polarforschung = Reports on Polar Research, 123, 130 pp ... |
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