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Geology Summary of the Jeanne
d’Arc Basin
The basin fill can be divided into two major stratigraphic
sequences that are clearly recognizable on seismic data:
1. An extensional stage sedimentary sequence (Late Triassic to
late Early Cretaceous) that is strongly compartmentalised by normal
fault systems and contains numerous structures
2. A thermal subsidence stage sedimentary sequence (Late
Albian to Present) that is tectonically undisturbed (i.e. no extension),
but contains remarkable depositional and erosional features, including
basin margin and floor fans
Alongside extensional tectonics, prolonged halokinesis
and
halotectonics
played an important role in basin evolution and
architecture. Prominent salt-cored structures are presently found
throughout the Grand Banks. Salt pillows underlay the Hibernia, Terra
Nova and White Rose oil fields and most of the other structural
features in the basin and on the Central Ridge
Enachescu, NL DNR 2009