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(previous picture) 21a. Iron bearing rock, Oakley Walls, Esk Valley, North Yorkshire, England - typical of rock found in the nearby Cleveland Hills from which the iron and steel industry of Teesside was originally founded. (next page) START or INDEX
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Geology-rocks-minerals geological topographical landscape scenes physical geography, types of rock formations - igneous granite basalt, metamorphic slate and sedimentary rocks limestone sandstone shale, rock strata