Odby Klint is a coastal cliff in southern Thyholm where it makes a resistant headland on the simplification coastline of Nissum Bredning. There is a salt structure under the southwest part of Thyholm – the Uglev salt dome – that is one of four salt structures in the GPWJ area. It is evident because it both affects the topography and elevates the pre-Quaternary deposits below the surface. The special feature of Odby Klint is that there are deposits from three glaciations (Elsterian, Saalian and Weichselian) overlying elevated Danian limestone (Figure 42-1 and 42-4).
The cliff profile is about 400 m long and up to 40 m high. The lowest roughly 2 m consist of Danian limestone with layers of flint. The sequence dips about 15° to the southeast because of the upward pressure of the salt dome. The limestone surface is an almost horizontal erosional surface, and at the southern end of the profile it is overlain by a layer of rounded fragments of limestone and flint. This layer has been influenced by ice pressure from the southeast, presumably related to advance of the Elsterian ice from the east (which has been demonstrated at two places on Thyholm and in west Salling), and detailed studies suggest that a glacial lobe was deflected south of the elevated limestone (Figure 42-3).
The limestone is not rich in fossils, although fragments of the bottom-living fauna can be found, as well as trace fossils in the flint. The fossils are described in more detail under site 43 (Bjørndal Limestone Quarry).
