Subject ASC0000zi9

The Quarterly journal of the Geological Society of London.
v.58 (1902), (1902)
Smithsonian Libraries
BHL Page 41675657

Keywords

geology wales rivers secondary rocks carboniferous rocks old red sandstone silurian Thames Frome Caledonian disturbance Llandilo disturbance Cennen Tair Carn Cribarth Vale-of-Neath disturbance landscape main water parting of south wales and limits of basins of the thames and "fromes" topography river systems sandstone Silurian South Wale Chalk Bristol Channel geological structure Sotuh Wales basins Maps of River Systems in relation to Geological Structure South Wales Escarpment rocks

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