COLEMAN, R.G. The Colebrooke Schist of southwestern Oregon and its Relation to the Tectonic Evolution of the Region / By R.G. Coleman. -- Washington : United States Government printing Office, 1972 - 61 p. + 1 plan. pleg. -- (Geological Survey Bulletin ; 1339). Fecha de entrada real 29-01-1973 Subjects--Topical Terms: Cretácico 2. OregónEstratigrafía Universal Decimal Class. No.: 551.763(795)