Lower–Middle

• Main Authors: Henrik I. Petersen, Lars H. Nielsen, Torben Bidstrup, Erik Thomsen
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Thomsen; Fennoscandian; North Atlantic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.504.6756; http://www.geus.dk/publications/bull/nr1_p611-630.pdf

Maturation of organic matter with increasing temperature is one of the most important parameters when evaluat-ing the thermal history and hydrocarbon potential of a basin. A common way to assess the maturation depth-trend is to construct coalification curves by plotting mea-sured huminite/vitrinite reflectances against depth. Various attempts have been made to construct such curves for the Danish Basin and the Fennoscandian Border Zone (Thomsen 1980; Thomsen et al. 1983, 1987; Schmidt 1985). However, these attempts have to some extent overlooked the significant amounts of post-Early Cretaceous differential uplift that have influenced the Danish Basin and the Fennoscandian Border Zone. Forchhammer (1835) recognised the pronounced ero-sional unconformity at the base of the Quaternary. The hiatus at this surface increases significantly towards the northern and eastern margin of the Danish Basin. It is now widely accepted that significant regional uplift occurred in Neogene and Pleistocene times in the North Atlantic area and along the Norwegian west coast into the Burial depth and post-Early Cretaceous uplift of