Sediment distribution German North Sea - classification according to FOLK (1954, 1974)
Description
The map on a scale of 1: 250,000 represents the sediment distribution according to FOLK (1954, 1974). This is based on a percentage distribution developed by FOLK (1974) of the three aggregated grain size fractions gravel & stones, sand and silt & clay, which are divided into 15 classes in a triangle diagram. The map is based on sediment samples from the seabed surface to a depth of 0.2 m and strata descriptions of drilling at a depth of 0.2 m, which were available in the German North Sea region until November 2012. The basic data are stored in databases at the BSH and LBEG, and data collected in the future will be integrated into them.
The map shows areas of similar loose sediments on the seabed surface. Loose sediments are classified according to their grain sizes according to DIN EN 14688-1: clay (grain size <0.002 mm); silt (grain size 0.002 to 0.063 mm); sand (grain size 0.063 to 2.0 mm); gravel (grain size 2.0 to 63 mm); Stones and blocks (>63 mm). On the basis of the particle size analyses carried out in the laboratory as well as the layer descriptions from boreholes, particle size ranges are summarized and classified accordingly for corresponding questions.
Resources
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https://nibis.lbeg.de/net3/public/ogc.ashx?NodeId=2368&Service=WMS&Request=GetCapabilities& |
Tags
- geologie
- opendata
- nibis-metadaten