Abstract

A posthumous work, prepared for publication by P. Allen, dealing with the lower New Red Sandstone of the Crediton valley, southwest England. The formation rests unconformably on Devonian rocks and consists of breccio-conglomerates, sandstones, and clays. The breccio-conglomerates are a mixture of sizes from clay to boulders and are usually considered torrential deposits laid down under semiarid climatic conditions. They are here classified into four divisions on the basis of their pebble content, each division having an index rock which uniquely identifies it. The divisions are Cadbury beds, Bow beds, Crediton beds, and St. Cyres beds. The lithology, source rocks, and paleogeography are discussed.

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