THE GLACIATION OF BORROWDALE, CUMBERLAND.
1925; Zoological Society of London; Volume: 20; Issue: 2 Linguagem: Inglês
10.1144/pygs.20.2.155
ISSN2041-4811
Autores Tópico(s)Pleistocene-Era Hominins and Archaeology
ResumoINTRODUCTION. The area covered by this paper is approximately the drainage areas of the Vale of Newlands, Borrowdale, and the Thirlmere valley, with part of the Greta valley between Threlkeld and Keswick. It is bounded by such famous heights as Helvellyn, the Langdales, Bowfell, Great Gable, Grassmoor and Skiddaw. The first paper really local to this area was one in 1855 by Dr. J. Bryce,1 in which, from a study of striated rocks and transported erratics, he deduced the existence of a group of valley glaciers radiating from Great Gable. From 1865 to 1878 D. Mackintosh published several papers, mainly on the distribution of drifts in North-West Lancashire and Cumberland. In his paper of 1865 he gave an account of many of the surface features of the Borrowdale area, attributing them to marine action. Among these are the dispersal of erratics near the Great End and the Upper Derwent valley, and the formation of the Castle Crag channel. He also noted that many of the rivers were too small to account for the valleys they occupied, and terms the excellent cirques of Scales Tarn on Blencathra, and the Hob-carton Combe, “hollows of denudation par excellence ”2 T. G. Bonney, in 1866, and C. E. De Rance, 1869, wrote important papers on the surface geology of the district.3,4 It was these workers who first definitely recognised the action of land ice glaciation in Borrowdale. In the year following the publication of R. H. Tiddeman’s classic paper on the ice sheet in North …
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