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The structure of the Lower Palaeozoic rocks of Anglesey, with special reference to faulting
Author(s) -
Bates D. E. B.
Publication year - 1974
Publication title -
geological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 54
eISSN - 1099-1034
pISSN - 0072-1050
DOI - 10.1002/gj.3350090104
Subject(s) - paleozoic , geology , intrusion , ordovician , paleontology , fault (geology) , cleavage (geology) , geochemistry , fracture (geology)
Abstract The principal structures of the Lower Palaeozoic rocks of Angelsey are described. Tight folding, with variably developed slaty cleavage and a first phase of reverse faulting, took place probably in late Silurian times, along axes which are parallel to pre‐Cambrian foliation trends. A second phase of reverse faulting followed basic dyke intrusion and was succeeded by normal faulting and mineralization. Joint production was a comparatively late feature. A technique for analysing fault data, in terms of stress axes, is outlined and applied to faulting within the Lower Palaeozoic rocks.