Abstract
A general description of the Quaternary and Neogene of Central Jutland follows after an introductory survey of previous investigations in the area and the general regional geology of the Neogene of Denmark. The Quaternary morphology and especially the solifluction deposits and periglacial structures are described. The Tertiary deltaic browncoal bearing deposits of the S0by-Fasterholt area are described in detail (lithostratigraphy) based upon exposures, wells and the petrography of the browncoal seams. The Miocene marine Hodde Formation and the outcrops of the Gram Formation of the Søby-Fasterholt area are described in general. The Fasterholt Flora especially, but also the Damgaard Flora and the Søby Flora, is discussed in an extended chapter on the biostratigraphy, and the pollen- stratigraphy is compared to the Lower Rhenian region. Finally, The exposures revealing pre-Weichselian disharmonic folding and faulting caused by compression are described and compiled.
Highlights
In the Carl Nielsen pit (CN) the 1st brown coal seam represents the evolution from a moist forest swamp, dominated by gymnosperms, towards an open water environment, that gradually changes into a drier forest swamp with a mixed vegetation
The 2nd brown coal seam in Carl Nielsen browncoal pit (CN) represents the gradual development and infilling of a lake basin that terminates with the deposition of a driftwood horizon
The 5th brown coal seam in Klynholt Vest probably represents the gradual development from a forest swamp to a reed moor
Summary
In the annual report to the Danish Natural Science Research Council 1974: "By means of palaeobotanical and geological investigations to extend our knowledge concerning the geological environments of brown coal deposition, based upon the brown coal bearing sequence of Central Jutland". This declaration provided investigation on different problems: 1. The Browncoal Bearing Sequence of the S0by-Fasterholt area contains different fossil floras (the Fasterholt flora, the S0by Flora, the Damgard flora) which were described in the former chapter; and from which fundamental stratigraphical information has been extracted.
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