Geoscience Reference
In-Depth Information
3
The stratigraphic compartments are composed
of eight allostratigraphic units which comprise
six transgressive-regressive sequences (T-R) sep-
arated by sequence boundaries formed as com-
bined subaerial unconformities and transgressive
surfaces (SU/TS surfaces). The T-R sequences
are the result of changes in relative sea-level,
probably controlled by vertical movements in
the northern Pangean continental plate.
4
The six T-R sequences are internally organised
by architectural elements of facies associations
formed in adjacent paralic subenvironments,
controlled by available accommodation space,
sediment supply and relative influence of
fluvial, tidal and wave processes.
5
Estuaries formed by flooding of incised valleys
are dominated by tidally controlled sand-rich
depositional environments, whereas deltas
exposed to more open-marine conditions are
preferentially wave-dominated.
6
A stratigraphic correlation between the Lower
Jurassic of the Jameson Land Basin and of the
Halten Terrace-Trøndelag Platform basin on
the Norwegian continental shelf is only valid
on a large scale, comprising an overall trans-
gressive-regressive development during the
Pliensbachian-Toarcian, with deposition of
sand-dominated formations, before regional
sea-level rise and flooding in the early Aalenian
with deposition of open-marine mudstone and
shale.
7
The Neill Klinter Group is an analogue for
Lower Jurassic sandstone reservoirs in the
Båt Group on the Halten Terrace-Trøndelag
Platform in terms of (1) improved conceptual
understanding of facies, facies associations and
architectural elements as function of deposi-
tional environment and sequence stratigraphy
and (2) modelling and flow simulation by appli-
cation of parameters on spatial distribution of
heterogeneities on various scales of grain-size
variation and shale baffles in tide- and wave-
influenced paralic sandstone reservoirs.
Bjørn Terje Oftedal, Jan Einar Ringås (all Statoil),
Torben Olsen (formerly Statoil, now Noreco) and
John Suter (ConocoPhillips) are thanked for initi-
ating this Project and for discussions in and off
the field. We also would like to thank Ann Christin
Aimee Ella Ferrari Holme, Hege Cecilie Nordeide-
Felde and Per Inge Myhre who have contributed
with collecting field data and/or logistics and
a large number of people for accompanying in
the field, from Statoil: Øystein Braathen, Scott
Bullimore, Nils Haabesland, Marte Høistad, Anita
Høiås, Morten Krogh, Simon Leary, Tine Lærdal,
Arve Næss, Philip Ringrose, Kristina Rossavik and
from ConocoPhillips: Line Haram (now independ-
ant consultant) and Hugo Lawrence. Imogen Poole
is thanked for wood sample data analysis and Adrian
Read language editing. We also thank Brian Willis,
Mr. Dixon and one anonumous reviewer for review
and comments for improving this manuscript.
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ACKNOWLEDGEMENTS
The authors would like to thank Statoil ASA for
financial support of this Project and permission to
publish. Professor Arild Andresen (University of
Oslo), Aka Lynge, POLOG and Air Greenland have
been extremely helpful in assisting with field
work logistics and transportation. Arve Næss,
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