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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
Michael
Larsen,2
Lars Hamberg,3 Snorre Olaussen,4 Niels Nørgaard-Pedersen,5
and Lars Stemmerik
1Manuscript received July 29, 1997;
revised manuscript received January 11, 1999; final acceptance January
29, 1999.
2Geological Survey of Denmark and
Greenland (GEUS), Thoravej 8, DK-2400 Copenhagen NV, Denmark; e-mail: [email protected]
3DONG A/S (the Faeroe Partnership),
Agern Allé 24-26, DK-2970 Hørsholm, Denmark.
4SAGA Petroleum A.S.A, P.O. Box 490,
N-1301 Sandvika, Norway.
5GEOMAR, Forschungszentrum für
marine Geowissenschaften, Wischhofstrasse 1-3, D-24148 Kiel, Germany.
ABSTRACT
The 1-km-thick sedimentary succession comprises
six facies associations: (1) alluvial plain and shallow marine (late Aptian?),
(2) fluvio-estuarine (late Aptian-early Albian), (3) offshore marine (Late
Cretaceous-early Paleocene), (4) submarine fan and channel-levee (early
Paleocene), (5) fluvial (mid-Paleocene), and (6) volcanic (late Paleocene).
Sedimentation was terminated in the late Paleocene by extrusion of flood
basalts related to continental breakup.
The basin fill is divided into two depositional
megasequences related to regional tectonic events and sea level changes.
The oldest megasequence (SQ1) spans the late Aptian to the earliest Paleocene
with sea level rise in the late Aptian and maximum flooding in the late
Albian-Cenomanian, followed by sea level highstand in the Late Cretaceous-early
Paleocene. SQ1 is truncated by a basin-wide unconformity related to regional
uplift and basin reorganization in the mid-Paleocene. The upper megasequence
(SQ2) spans the mid- to late Paleocene and comprises sediments deposited
during early sea level rise. Extensive volcanic deposits and continental
flood basalts overlie it.
Deep burial (> 6 km) and middle Eocene-early Oligocene(?)
uplift excludes the Kangerlussuaq basin as a petroleum basin in itself;
however, to evaluate the petroleum potential of similar volcanic influenced
offshore basins, such as the West Shetland, Faeroe, Møre, and Vøring
basins, we discuss three conceptual play models based on the Kangerlussuaq
basin: (1) early Albian stratigraphic trap, (2) early Paleocene structural
trap, and (3) Paleocene stratigraphic trap.
The Cretaceous-Paleogene Kangerlussuaq basin
in southern East Greenland represents a unique outcrop analog for the frontier
petroleum provinces along the deep-water volcanic margins of the northern
North Atlantic.
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