On the Ancient Beach and Boulders near Braunton and Croyde, in N. Devon
1887; Geological Society of London; Volume: 43; Issue: 1-4 Linguagem: Inglês
10.1144/gsl.jgs.1887.043.01-04.49
ISSN2058-105X
Autores Tópico(s)Marine and environmental studies
ResumoThe ancient high-level beaches of the south-west of England have long attracted notice. Paris referred some of them to blown sand; Carne and Boase mentioned the occurrence of similar phenomena around the coast of Cornwall. Godwin-Austen described a “raised beach” at Hope's Nose, and later on, in his paper on the superficial accumulations of the coasts of the English Channel, gave an account of several other deposits in different localities, which seemed to him to indicate an elevation of the coast-line. The position of many of these beaches is indicated by Greenough on his geological map and by De la Beche on the maps of the Geological Survey. Among the raised beaches we generally find included the sandcliffs of Saunton Down and Middle Borough, on the coast west of Barnstaple. These deposits have a further interest attached to them from the occurrence at their base of large boulders of various kinds of rock, some of which, it would seem, do not exactly resemble any rock-masses in the drainage-areas from which they could have been transported to where they are now found by any kind of river-action. Sedgwick, Murchison, Williams, and De la Beche have described these cliffs, pointing out the similarity of the deposits to those of the modern shore, and, assuming that the whole was an ancient beach, of course explained itz present position by changes in the relative level of land and sea. It seems to have been generally spoken of as a Raised Beach from the time
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