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Geological Survey of Denmark and Greenland (GEUS)
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Research Group



Zyad Al-Hamdani

Steen Lomholt
Sara Skar
Jørgen Overgaard Leth
Jørn Bo Jensen
Kaarina Weckström

Lars-Georg Rödel
 Egon Hansen

Niels Nørgaard-Pedersen
Naja Mikkelsen
Antoon Kuijpers
Birger Larsen
Camilla S. Andresen
  Danni Junge Jensen
Jacob Geltzer
 Carina bendixen


List of marine geological instruments


Marine Geology at GEUS includes both commercially funded offshore survey activities and scientific investigations of coastal and offshore areas, principally worldwide, but for obvious national reasons most focusing on Danish and Greenland territory with further activities concentrated in North Atlantic waters around the Faroe Islands. The main issues of study are the exploiration of seabed raw materials and mineral resources, the investigation of potential geohazards in deep-water areas of interest for offshore hydrocarbon exploitation, environmental quality, and more generally sedimentary processes relevant for various reasons (e.g. coastal defense) and subjects related to global climate change.

Tasks and goals

The Marine Geology Group at the GEUS Department of Quaternary Geology deals with studies of the (Quaternary) geology of coastal and shelf areas as well as deep-ocean sedimentary systems. Basic scientific information is critical to understanding environmental changes in these areas. By using knowledge of the fundamental geologic processes that create and modify the seabed, geological models and prediction scenario's are made. The models and scenario's are used by scientists, political planners, and managers to assess and predict future change, such as the possible risk of slope instability in deep-water areas, coastal erosion, various effects of (abrupt) climate change and sea level rise, long-term impact of various contaminants, potential effects of seabed sand extraction and trawling activity as well as submarine fluid and gas seepage.

  • airgun explosion Marine geological research at GEUS contributes to a better understanding of coastal, shelf and deep-water geological processes, and is of basic national and international interest having fundamental economic and political (e.g. Law of the Sea § 76) implications. The study of sedimentary and seismic records provides information on natural changes in (marine) geologic systems, which is, amongst others, required in order to distinguish between anthropogenic and natural changes. Funding of this work at GEUS is both via national and international agencies (e.g. EU).
  • Apart from more basic research, applied marine geological studies by GEUS have contributed in improving the knowledge of specific coastal and offshore areas, particularly in the Baltic Sea, Kattegat, Skagerrak and North Sea. Other work dealing with more applied topics (e.g. slope instability) focuses on deep-water areas offshore the Faroe Islands and Greenland where commercial interest in potential hydrocarbon exploitation recently has increased.
  • A further issue of special interest at GEUS addresses the interaction between (late) Quaternary ocean circulation change and (large-scale) climate changes with most efforts concentrated in the Greenland and Faroe region. Other climate-related research projects deal with both the Arctic and low-latitude marine environment and the possible role of climate change in these areas forcing NW European climate.
  • The Marine Geology Group at GEUS is equipped with a wide spectrum of shallow seismic and sediment sampling equipment both for shelf and deep-water investigations, which is also available for commercial purposes. This equipment includes, amongst others, (shallow) seismic instruments such as a boomer, sparker systems for both shelf and deep-sea (10 KJ system) survey as well as X-Star and CHIRP sub-botom profilers, and for sediment sampling a vibrocorer, gravity- and piston corer as well as a box corer . For seismic and sediment processing, supporting workstation and laboratory facilities are available.

Current projects:

- Marta - Marine Seismic Database

- Baltic Gas

- Sedimentation history of Kangersuneq ice fjord


Publications list

See also

Edited by:
Jacob Geltzer, GEUS
Feel free to send e-mail for more information.

[Top]   Last modified: 11. januar 2013 © Geological Survey of Denmark and Greenland - GEUS
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This page is maintained by: Jacob Geltzer