572 Reports and Proceedings — Geological Society of London. 



REPORTS -A-HSTID PEOOEEDHSTGS. 



Geological Society of London. 



November 8, 1911.— Professor W. W. Watts, Sc.D., LL.D., M.Sc, 

 F.B.S., President, in the Chair. 

 The following communications were read : — 



1. "On the Interglacial Gravel Beds of the Isle of Wight and the 

 South of England, and the Conditions of their Formation." By 

 Professor Edward Hull, M.A., LL.D., F.B.S., F.G.S. 



The author, after referring to the investigations of previous authors, 

 especially of Mr. Codrington and the officers of the Geological Survey, 

 with which he in the main agrees, points out that the origin and mode 

 of formation of the gravel terraces of the Isle of Wight and the New 

 Forest districts are still open to discussion. He points out that the 

 levels of the higher beds on both sides of the Solent up to about 

 400 feet indicate the amount of subsidence of the whole area at 

 a time when the stratified gravels, composed mainly of rolled flints, 

 were formed at the margin of the uprising ridges of the Chalk in the 

 post-Glacial*epoch, for this part of England. Preceding this was the 

 great uplift indicated by Godwin -Austen, by which the British Isles 

 were joined to the Continent as land. By this uplift the English 

 Channel was laid dry, and along its centre there ran a river from its 

 source about the Straits of Dover to its outlet into the ocean through 

 the Continental Platform. This river-channel is laid down on the 

 Admiralty Charts under the name of 'the Hurd Deep ' for a distance 

 of 30 miles of its course, and hus been named by the author ' the 

 English Channel River'. The author considers the gravel beds of 

 this district to be the representatives of the High-level Gravels of the 

 Midlands and Cromer, also of the ' Interglacial Gravels ' of Cheshire 

 and Lancashire, and the shell-bearing beds of the Denbighshire Hills, 

 and of Moel Tryfaen in Wales, at levels of about 1,200 feet above 

 the sea. 



2. "The Gopeng Beds of Kinta (Federated Malay States)." By 

 John Brooke Scrivenor, M.A., F.G.S. 



The paper as originally presented was the outcome of field-work 

 done chiefly in 1910; but, as it had to be held over until the 

 November session, an appendix has been added giving additional 

 evidence supporting the author's views and more information about 

 the extent of the Gopeng Beds. 



Gopeng is a prosperous mining centre in the Kinta Valley, close to 

 the granite of the main range of the Malay Peninsula. The following 

 is the succession of the rocks : — 



Youngest. The Mesozoic granite, with its modifications and veins. 

 Phyllites and quartzites. 

 The Gopeng Beds. 

 Oldest . Crystalline limestone (Carboniferous or Permo-Carboniferous). 



The physical features of the country are described, and it is shown 

 that not only are the Gopeng Beds cut by veins from the granite and 

 altered at the junction with the granite, but they are also faulted 

 down against the limestone, which forms precipitous hills. 



