In large parts of Northern Twente rocks of Eocene age outcrop or occur below a thin cover of sand and gravel. Some new localities of these Eocene deposits, e.g. road-ditches, waterborings and buildings-pits in the Vasse-Ootmarsum and Oldenzaal-Losser areas are described in detail. Of special interest is a siltstone (Vasser siltsteen) occurring interbedded with sandy loam. Evidence for a lower Eocene age is presented. Blocks of this siltstone abundantly are found in the glacial deposits of the area.
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| , , , , | |
| Grondboor & Hamer | |
| CC BY 3.0 NL ("Naamsvermelding") | |
| Organisation | Nederlandse Geologische Vereniging |
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W.F. Anderson. (1968). Vasser siltsteen. Grondboor & Hamer, 22(2), 49–57. |
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