The Rødryggen-1 and Brorson Halvø-1 fully cored boreholes (Upper Jurassic – Lower Cretaceous), Wollaston Forland, North-East Greenland – an introduction

Two fully cored boreholes, the Rødryggen-1 and the Brorson Halvø-1, were drilled in Wollaston Forland, North-East Greenland, in 2009 and 2010, respectively. The objective was to test the stratigraphic development of the Upper Jurassic – Lower Cretaceous mud-dominated succession in two different sett...

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Bibliographic Details
Published in:GEUS Bulletin
Main Authors: Jørgen A. Bojesen-Koefoed, Peter Alsen, Morten Bjerager, Jussi Hovikoski, Jon R. Ineson, Peter N. Johannessen, Mette Olivarius, Stefan Piasecki, Henrik Vosgerau
Format: Article in Journal/Newspaper
Language:English
Published: Geological Survey of Denmark and Greenland 2023
Subjects:
stratigraphic boreholes
technical data
sedimentology
biostratigraphy
geochemistry
Geology
QE1-996.5
Geophysics. Cosmic physics
QC801-809
Canada
Greenland
Wollaston
Wollaston Forland
East Greenland
North Atlantic
Wollaston forland
Siberia
Online Access:https://doi.org/10.34194/geusb.v55.8350
https://doaj.org/article/4ffbb370ddd64d6aa3c42e2ece45f1db
Description
Summary:Two fully cored boreholes, the Rødryggen-1 and the Brorson Halvø-1, were drilled in Wollaston Forland, North-East Greenland, in 2009 and 2010, respectively. The objective was to test the stratigraphic development of the Upper Jurassic – Lower Cretaceous mud-dominated succession in two different settings within the same fault block of a developing half-graben: centrally (Rødryggen-1 borehole) and near the uplifted crest of the rotating fault block (Brorson Halvø-1 borehole). The drilled deposits are equivalent to the principal petroleum source-rock sequence of the petroliferous basins of North-West Europe, Siberia, and basins off eastern Canada and provide a new record of an important phase of marine deoxygenation in the proto-North Atlantic region.

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