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Anomalous Turonian-Campanian Chalk deposition in south Dorset; the influence of inherited pre-Albian structures.

By Keith Westhead and Mark Woods

Abstract

The Turonian-Campanian Upper Chalk in the area between Dorchester and Weymouth in Dorset shows an abnormal development of hard chalk beds in the late Coniacian-Santonian Micraster coranguinum to the early Campanian Gonioteuthis quadrata zones. The chalk is also strongly affected by faults representing the surface expression of reactivated underlying pre-Albian structures. This suggests a link between tectonism and Turonian-Campanian chalk deposition, which may be related to the proximity of the south Dorset disturbance.\u

Topics: Earth Sciences
Publisher: Elsevier
Year: 1994
DOI identifier: 10.1016/S0016-7878(08)80106-X
OAI identifier: oai:nora.nerc.ac.uk:9075
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