The stratigraphy of the post-Palaeozoic sequences in part of the western Channel

Abstract

The micropalaeontological investigation of rock samples collected in the western part of the English Channel during the Anglo-French research cruise Geomanche II together with samples collected by French and British university workers, have been used to produce a stratigraphic synthesis of the area. The age determinations of samples ranges from Permo-Triassic to Neogene. The interpretation of the structure is based upon continuous reflexion seismic profiling obtained during the Géomanche I cruise. The major structural feature of the area is the large syncline with its axial plane striking VSW—ENE and its axis plunging gently westwards. Two important structures include the structural high between Jersey and Start Point and the Alderney-Ushant structural line. The paper includes a geological map and a list of sample stations.