1 / 31

Pleistocene of the North Sea

Pleistocene of the North Sea. Hans Petter Sejrup. Marine Geological cruise to the North Sea – Fladen area, 2005. Research perspectives. Quaternary stratigraphy and paleoenvironments Paleoclimatic studies - (Rapid) Meltwater & stability of marine based ice sheets Holocene Glacial processes

eldora
Télécharger la présentation

Pleistocene of the North Sea

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Pleistocene of the North Sea Hans Petter Sejrup Petromaks

  2. Petromaks

  3. Marine Geological cruise to the North Sea – Fladen area, 2005 Petromaks

  4. Research perspectives • Quaternary stratigraphy and paleoenvironments • Paleoclimatic studies - (Rapid) • Meltwater & stability of marine based ice sheets • Holocene • Glacial processes • Ice streams…. • Site surveys • Geotechnics & coring programs • Influence on hydrocarbon reservoirs (GLACIPET) • Subsidence and overburden Petromaks

  5. Challenges • Genetic interpretation of sediments and acoustic units • Till…. • Marine, fluvial, lacustrine sediments… • Methods • Chronostratigraphy • AMS, Sr isotopes… • Paleomag, amino, bio.. • Episodic style of sedimentation & erosion Petromaks

  6. Norwegian sector Ice stream influence Petromaks

  7. Marginal moraines • Troll Glacial lineations Petromaks

  8. Sejrup et al. 1995 Petromaks

  9. Sejrup et al. 2000 Petromaks

  10. Petromaks

  11. Petromaks

  12. Max. glaciation scenario Interglacial scenario Petromaks

  13. UK sector Incisions,tills and shallow marine Petromaks

  14. Carr in press Petromaks

  15. Petromaks

  16. BGS 81/26 Petromaks Sejrup et al. 1987

  17. LGM glacial history • History of reconstructions • Understanding of the system - chronology • Meltwater delivery how, when and volumes • Stability of icestreams to the margin • Some keysites and their implications Petromaks

  18. Petromaks

  19. Petromaks

  20. Petromaks

  21. Petromaks

  22. Petromaks

  23. Petromaks

  24. Petromaks

  25. Conclusion • Dynamic model for the Pleistocene development of the North Sea ? • Understanding of processes and their implications (Ice streams, meltwater, incisions etc.) • 3 D data potensial -long cores -fieldwork • Volumes and timing • Modelling…. Petromaks

  26. H3 Norwegian Sea MD 2010 MD 2289 Petromaks

  27. Petromaks

  28. Stoker et al. Petromaks

  29. UK ice sheet c.18 ka BP Pre LGM dates in Scotland Boulton 2002 Petromaks

  30. Petromaks

  31. Petromaks

More Related