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Murchison, Sir Roderick Impey 1792-1871
Scottish geologist

Born in Tarradale, Ross-shire, he devoted himself to geology after leaving the army in 1816. He established the Silurian system (1835) and, with Adam Sedgwick, the Devonian system. From 1840 to 1845, with others, he carried out a geological survey of the Russian empire. Struck with the resemblance between the Ural mountains and Australian chains, he foreshadowed the discovery of gold in Australia (1844). Murchison Falls (Uganda) and Murchison River (Western Australia) are named after him. In 1855 he was made director-general of the Geological Survey and director of the Royal School of Mines. His principal works were The Silurian System (1839) and The Geology of Russia in Europe and the Urals (1845).