Abstract
Mesozoic deposition in North Greenland is characterised largely by increasing complexity in the configuration of sub-basins developed in response to the major tectonic events in the Wandel Hav Strike-Slip Mobile Belt. While erosional remnants of Lower and Middle Triassic marine deposits are now confined to a very restricted area, Upper Jurassic - Lowcr Cretaceous marine to terrestrial deposition took place in two distinct sub-basins resulting from Jurassic left-lateral displacement in the Ingeborg Event. Variable marine and terrestrial Upper Cretaccous strata are restricted to local pull-apart basins formed in the right-lateral mid-Cretaceous Kilen Event; deposition in these basins was everywhere terminated in the continuously right-lateral transpressional movements of the Kronprins Christian Land Orogeny. Compression ceased around the Cretaceous-Tertiary boundary, and a post-orogenic terrestrial sequence of probable Paleocene age is disturbed only by extensional structures.
Highlights
Mesozoic deposition in North Greenland is characterised largely by increasing complexity in the configuration of sub-basins developed in response to the major tectonic events in the Wandel Hav Strike-Slip Mobile Belt
Variable marine and terrestrial Upper Cretaccous strata are restricted to local pult-apart basins formed in the right-lateral mid-Cretaceous Kilen Event; deposition in these basins was everywhere terminated in the continuously right-lateral transpressional movements of the Kronprins Christian Land Orogeny
Knowledge concerning the distribution and history of the post-Palaeozoic strata did not attain a level sufficient to allow more precise speculation about the Mesozoic and Cenozoic development in this crucial corner of the North American continental plate until large scale investigations were initiated during the North Greenland Project of the Geological Survey of Greenland (1978-80); later work has been supported by the Carlsberg Foundation, Copenhagen
Summary
At Kap Rigsdagen in Valdemar Gliickstadt Land (Fig. 1) an isolated sequence of marginally marine to lagoonal clastie deposits has yielded microfioras indicating an Aptian age for most of the 85 m of strata preserved (Fig. 3; locality 4; Håkansson et al, 1981b). At Kilen, in Kronprins Christian Land, an at least 1500 m thick marine ciastic sequence aeeumulated in the early part of the Late Cretaeeous, exhibiting an overall shaIlowing development (Fig. 3; locality 10; Håkansson et al, in press). The Late Cretaceous sequence at Kilen was strongly deformed into a series of domal folds and thrusts during the compressional regime of the Kronprins Christian Land Orogeny which everywhere terminated activity in the Wandel Hav Strike-Slip Mobile Belt (Håkansson & Pedersen, 1982; Håkansson et al, in press).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
