Subject:Mineral industries -- Oregon Petroleum -- Prospecting -- Oregon Natural gas -- Prospecting -- Oregon Geothermal resources -- Oregon Geology -- Oregon -- Field work
Keyword:Thematic Classification -- Geography and Geology -- Geology
Description:
Oregon's mineral and metallurgical industry in 1975 / Ralph S. Mason -- Oil and gas exploration in 1975 / V.C. Newton, Jr. -- Geothermal activity in 1975 / Donald A. Hull and V.C. Newton, Jr. -- Field-oriented geology studies in Oregon during 1975 / John D. Beaulieu.
