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Oregon's mineral industry in 1964 / Ralph S. Mason -- Oil and gas exploration in 1964 / V. C. Newton, Jr. -- Field work in Oregon, 1964 / R. E. Corcoran.
Introduction -- An enigma in Diller's mapping in the Port Orford folio -- Jurassic slates -- Age of metamorphism and plutonism -- Reinterpretation of the "Jurassic slates" and the pre-Portlandian unconformity...
Introduction -- Methods -- Distribution of heavy minerals -- Total heavy minerals -- Magnetic heavy minerals -- Non-magnetic heavy minerals -- Summary -- Acknowledgments -- References.