Abstract
Scattered occurrences of Palaeogene sediments are found in North-East Greenland, where they overlie unconformably Cretaceous sediments and are capped by Palaeogene basalts. These sediments have received little attention (Watt 1994), except for relatively recent studies (Nøhr-Hansen & Piasecki 2002; Jolley & Whitham 2004; Larsen et al. 2005; Heilmann- Clausen et al. 2008). As part of an ongoing petroleum geological study that focuses on the Jurassic–Cretaceous succession, the Palaeogene sediments were included to better constrain their age, depositional environment and relation to the basalts. Several localities were investigated on Wollaston Forland, Sabine Ø and Hold with Hope, a few of which are described here (Fig. 1).
Highlights
Scattered occurrences of Palaeogene sediments are found in North-East Greenland, where they overlie unconformably Cretaceous sediments and are capped by Palaeogene basalts
200 m of Palaeogene sediments are partly exposed in the footwall block, forming two upward-coarsening units overlain by basalts (Fig. 2)
The new biostratigraphic dating shows that the Palaeogene sediments on Wollaston Forland, Hold with Hope and Sabine Ø comprise Paleocene and earliest Eocene strata with a hiatus that probably spans the major part of the Selandian and Thanetian
Summary
Discontinuous outcrops of mostly loose and un-cemented Palaeogene sediments occur in Haredal, eastern Wollaston Forland. The best exposed succession is situated in the western footwall block, where the succession dips 20° to the SW (Fig. 2). It overlies marine mudstones of Late Albian age (Wigginsiella grandstandica Subzone (V1) of Nøhr-Hansen 1993) in the footwall block and of Early to Middle Campanian age (indicated by the dinocysts Alterbidinium ioannidesii and Cerodinium diebelii) in the hanging wall block; the contact to the Cretaceous is not exposed. A poorly exposed Palaeogene succession in the northern slope is probably from the hanging wall block; the base of the succession and underlying strata are not exposed. 200 m of Palaeogene sediments are partly exposed in the footwall block, forming two upward-coarsening units overlain by basalts (Fig. 2). The presence of A. augustum may correlate with the A. augustum (P6b) Subzone described from the central North Sea (Mudge & Bujak 1996) and correlated
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