THE GLACIAL DRIFTS OF THE SOUTHERN PART OF THE SHROPSHIRE-CHESHIRE BASIN

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Abstract
Official work on the Nantwich district (Sheet 122) showed t h a t the sequence of two boulder-clays with associated fluvioglacial deposits, previously recognized only in the northern part of the Shropshire–Cheshire basin, also extended into its centre. Subsequent private research has shown that this sequence may be distinguished throughout the whole basin and in a critical region beyond its south-eastern margin—in total an area exceeding 3000 square miles. The recognition of glacial lake features cut into the Upper Boulder-clay in the Nantwich district and elsewhere necessitates a revision of current ideas about the origin of Lake Lapworth and the age of the Severn terraces above Ironbridge. Accepted correlations relating to the basin and its adjacent areas, the status of the “Little Welsh Glaciation” and the Newport–Wolverhampton esker chain are discussed. A new interpretation of the Pleistocene and Recent history of the region is presented.