The Cassiar Terrane is a 1,500 km (930 mi) long Cretaceous terrane located in the Northern Interior of British Columbia and southern Yukon. It consists of miogeoclinal strata and contains the Cassiar Batholith, a 100-million-year-old igneous intrusion and the single largest intrusive body in the hinterland of the Canadian portion of the Western Cordillera.[1]
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