At the edge of a new ocean: post-volcanic evolution of the Palaeogene Kap Dalton Group, East Greenland

M. Larsen, C. Heilmann-Clausen, S. Piasecki, L. Stemmerik

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedings

19 Citations (Scopus)

Abstract

Following the extensive flood basalt volcanism that accompanied the onset of seafloor spreading and arrival of the proto-Icelandic hotspot in the North Atlantic region, marine sedimentation resumed during the early Middle Eocene. In East Greenland, post-basaltic sediments exposed at Kap Dalton and Savoia Halvø represent the scattered remains of a much more widespread, fluvial to shallow-marine succession. Deposition in the late Paleocene-Eocene was governed by a complex interplay between loading, thermal contraction of the oceanic crust, passage of the hotspot and eustatic sea-level changes. At Kap Dalton extrusion of Early Eocene, Chron C21r flood basalts was followed by subaerial erosion, creating an irregular relief dissected by fluvial channels. The area was transgressed during the early Middle Eocene and, during the Middle Eocene, a muddy, poorly oxygenated shelf was formed. The presence of clean quartz sandstones within the early post-basaltic succession indicates that areas with little or no basaltic cover became periodically exhumed. The depositional events documented in the Kap Dalton succession strengthen the possibility of Middle Eocene non-volcanic reservoir units being present in the offshore areas, lending support to the Eocene play in the northern North Atlantic region.

Original languageEnglish
Title of host publicationPetroleum Geology: North-West Europe and Global Perspectives. Proceedings of the 6th Petroleum Conference London
EditorsA.G. Doré, B. Vining
PublisherGeological Society of London
Pages923-932
Number of pages10
DOIs
Publication statusPublished - 2005
Event6th Petroleum Geology Conference - Queen Elizabeth II Conference Centre, London, United Kingdom
Duration: 6 Oct 20039 Oct 2003

Publication series

NamePetroleum Geology Conference Proceedings
PublisherGeological Society of London
ISSN (Print)2047-9921

Conference

Conference6th Petroleum Geology Conference
Country/TerritoryUnited Kingdom
CityLondon
Period6/10/039/10/03

Keywords

  • East Greenland
  • Eocene
  • North Atlantic
  • Petroleum geology
  • Post-basaltic
  • Shallow marine
  • Stratigraphy

Programme Area

  • Programme Area 3: Energy Resources

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