mist rising from river Teign at Ashton, rising from river Teign at Ashton, pits in the teign valley,Ashto

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mist rising from river Teign at Ashton, pits in the teign valley, of the Teign Valley,plots for arsenic, copper, lead and zinc in soil samples.The area of south-west England stretches along both sides of the middle section of the River Teign between Dunsford [SX 813 892]* and Chudleigh Knighton [846 7741; it extends some km out from the north-eastern edge of the Dartmoor Granite (Figures 1 and 2). In this part of its course the Teign flows south or south-east in a relatively narrow and deep valley which cuts sharply through folded Upper Palaeozoic strata (Figure 2). Zinc and argentiferous lead ores, some siderite and fluorspar were worked between about 1840 and 1890 from small mines immediately west of the river; baryte was mined almost continuously from 1855 to 1958. During the early 19th century small tomrages of manganese oxides were extracted from shallow depths.

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Photo credit: © andrew payne / Alamy / Afripics
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