Exploration-relevant sandstones of Valanginium in Lower Saxony 1 : 500 000 - Transmissibility from drill core data
Description
The overview map shows the distribution of Valanginium (Lower Cretaceous) in the Lower Saxony Basin and shows in particular exploration-relevant sandstones and their properties. Regionally contiguous sandstones with a thickness of at least five metres are considered to be relevant for exploration. For these units, a potential as geothermally usable aquifers can be assumed, but this must be demonstrated on a site-specific basis in individual cases. Delimited from this, claystones, siltstones, clay-silt sandstones and light-weight sandstones are summarized on the overview map. Porosity, permeability and transmissivity of lithologies were not included in the mapping, but are reported as drilling-related parameters where available.
Transmissibility of the sandstones results from their thickness and the respective permeability and is represented according to the calculation basis in different symbols in the units darcymeter (Dm) and cubic meter (m3).
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https://nibis.lbeg.de/net3/public/ogc.ashx?NodeId=1217&Service=WMS&Request=GetCapabilities& |