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

Authors

  • Jørgen A Bojesen-Koefoed Department for Mapping and Mineral Resources, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark https://orcid.org/0000-0001-5647-2769
  • Peter Alsen Department for Geo-energy and Storage, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark https://orcid.org/0000-0001-6218-9054
  • Morten Bjerager Department for Geophysics and Sedimentary Basins, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark
  • Jussi Hovikoski Department for Geophysics and Sedimentary Basins, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark; Geological Survey of Finland (GTK), Espoo, Finland https://orcid.org/0000-0001-6330-8713
  • Jon R Ineson Department for Geophysics and Sedimentary Basins, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark https://orcid.org/0000-0003-0017-3705
  • Peter N Johannessen Geological Survey of Denmark and Greenland (GEUS), now retired
  • Mette Olivarius Department of Geo-energy and Storage, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark https://orcid.org/0000-0003-3853-7543
  • Stefan Piasecki Department for Geophysics and Sedimentary Basins, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark; Globe Institute, University of Copenhagen, Copenhagen, Denmark; Retired https://orcid.org/0000-0002-7846-859X
  • Henrik Vosgerau Department for Geophysics and Sedimentary Basins, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark https://orcid.org/0000-0002-7582-5360

DOI:

https://doi.org/10.34194/geusb.v55.8350

Keywords:

stratigraphic boreholes, technical data, sedimentology, biostratigraphy, geochemistry

Abstract

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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References

Alsen, P., Piasecki, S., Nøhr-Hansen, H., Pauly, S., Sheldon, E. & Hovikoski, J. 2023: Stratigraphy of the Upper Jurassic to lowermost Cretaceous in the Rødryggen-1 and Brorson Halvø-1 boreholes, Wollaston Forland, North-East Greenland. GEUS Bulletin 55, 8342 (this volume). https://doi.org/https://doi.org/10.34194/geusb.v55.8342

Bojesen-Koefoed, J.A., Alsen, P., Bjerager, M., Hovikoski, J., Johannessen, P., Nøhr-Hansen, H., Petersen, H.I., Piasecki, S. & Vosgerau, H. 2023: Organic geochemistry of an Upper Jurassic – Lower Cretaceous mudstone succession in a narrow graben setting, Wollaston Forland Basin, North-East Greenland. GEUS Bulletin 55, 8320 (this volume). https://doi.org/https://doi.org/10.34194/geusb.v55.8320

Hovikoski, J., Ineson, J.R, Olivarius, M., Bojesen-Koefoed, J.A, Piasecki, S. & Alsen, P. 2023: Upper Jurassic – Lower Cretaceous of eastern Wollaston Forland, North-East Greenland: a distal marine record of an evolving rift. GEUS Bulletin 55, 8349 (this volume). https://doi.org/https://doi.org/10.34194/geusb.v55.8349

Hovikoski, J. et al. 2023b: Late Jurassic – Early Cretaceous marine deoxygenation in NE Greenland. Journal of the Geological Society 180 (3), jgs2022–058. https://doi.org/10.1144/jgs2022-058

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Olivarius, M., Kazerouni, A.M., Weibel, R., Kokfelt, T.F. & Hovikoski, J. 2023: Mudstone diagenesis and sandstone provenance in an Upper Jurassic – Lower Cretaceous evolving half-graben system, Wollaston Forland, North-East Greenland. GEUS Bulletin 55, 8309 (this volume). https://doi.org/https://doi.org/10.34194/geusb.v55.8309

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Surlyk, F. 2003: The Jurassic of East Greenland: a sedimentary record of thermal subsidence, onset and culmination of rifting. In: Ineson, J.R. & Surlyk, F. (eds): The Jurassic of Denmark and Greenland. Geological Survey of Denmark and Greenland Bulletin 1, 659–722. https://doi.org/10.34194/geusb.v1.4674

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Surlyk, F., Alsen, P., Hovikovski, J. & Piasecki, S. 2023: Uplift, deflation and marine onlap of a Jurassic rift dome, illustrated by a backstepping Middle – Upper Jurassic shelf-to-slope succession, Geographical Society Ø, East Greenland. Terra Nova 00, 1–8. https://doi.org/10.1111/ter.12673

Field site with tents

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Published

21-12-2023

How to Cite

Bojesen-Koefoed, J. A., Alsen, P., Bjerager, M., Hovikoski, J., Ineson, J. R., Johannessen, P. N., Olivarius, M., Piasecki, S., & Vosgerau, H. (2023). The Rødryggen-1 and Brorson Halvø-1 fully cored boreholes (Upper Jurassic – Lower Cretaceous), Wollaston Forland, North-East Greenland – an introduction. GEUS Bulletin, 55. https://doi.org/10.34194/geusb.v55.8350

Issue

Vol. 55 (2023): The Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Rødryggen-1 and Brorson Halvø-1 boreholes, Wollaston Forland Basin

Section

PREFACE

License

Copyright (c) 2023 Jørgen A Bojesen-Koefoed, Peter Alsen, Morten Bjerager, Jussi Hovikoski, Jon R Ineson, Peter N Johannessen, Mette Olivarius, Stefan Piasecki, Henrik Vosgerau

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

GEUS Bulletin is an open-access, peer-reviewed journal published by the Geological Survey of Denmark and Greenland (GEUS). This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents. Read the full open access policy.

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