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

Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedings

19 Citationer (Scopus)

Abstrakt

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.

OriginalsprogEngelsk
TitelPetroleum Geology: North-West Europe and Global Perspectives. Proceedings of the 6th Petroleum Conference London
RedaktørerA.G. Doré, B. Vining
ForlagGeological Society of London
Sider923-932
Antal sider10
DOI
StatusUdgivet - 2005
Begivenhed6th Petroleum Geology Conference - Queen Elizabeth II Conference Centre, London, Storbritannien
Varighed: 6 okt. 20039 okt. 2003

Publikationsserier

NavnPetroleum Geology Conference Proceedings
ForlagGeological Society of London
ISSN (Trykt)2047-9921

Konference

Konference6th Petroleum Geology Conference
Land/OmrådeStorbritannien
ByLondon
Periode6/10/039/10/03

Programområde

  • Programområde 3: Energiressourcer

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