Title
An improved regional structural model of the Upper Carboniferous of the Cleaver Bank High based on 3D seismic interpretation
Author
Netherlands Inst. Appl. Geosci. TNO, National Geological Survey, PO Box 80015, Utrecht, TA 3508, Netherlands
Schroot, B.M.
de Haan, H.B.
Contributor
Nieuwland, D. (editor)
Publication year
2003
Abstract
The use of 4500 km2 of amalgamated 3D seismic surveys allowed for an improved intra-Carboniferous seismic interpretation of the Dutch Cleaver Bank High, which is part of the Southern North Sea Carboniferous Basin. The observations of faults that were active during the Late Carboniferous are reviewed in the context of what is described in literature about the regional structural framework of the basin. The high quality seismic data show at least three distinct fault trends, namely east-west, NE-SW and NW-SE, active before Rotliegend times. All of these trends are inherited from older existing zones of weakness, and furthermore, all three trends have been reactivated again during the Mesozoic or Cenozoic to some extent. The interpretation of major controlling east-west shear zones that have been reactivated in different senses throughout geological history is the result of careful examination of the data. The dominance of such systems is not obvious on simple fault maps. Their role in the regional plate tectonics fits the model of escape tectonics of the North Sea-Baltic plate. The distinction of different styles of Late Carboniferous normal fault systems results in a better understanding of the different tectonic phases during the period from Westphalian D to Autunian.
Subject
Carboniferous
faulting
geological structure
seismic survey
tectonic evolution
tectonic setting
North Sea
Carboniferous
Geological Survey Netherlands
Energy / Geological Survey Netherlands
Earth & Environment
AGEA - Advisory Group for Economic Affairs
EELS - Earth, Environmental and Life Sciences
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TNO identifier
469240
Publisher
Geological Society, London, London
Source
New Insights into Structural Interpretation and Modelling, 23-37
Series
Special Publications
Document type
bookPart