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Filtering by: Date 1974 Date issued sim 1974-10-9 Subject Geology -- Oregon -- Clatsop County

Stratigraphy and sedimentation of the Onion Peak area, Clatsop County, Oregon

Creator:

Smith, Thomas N.

Abstract:

Six Tertiary units are exposed in the Onion Peak area near the town of Cannon Beach., Oregon. The units consist of: late Eocene to early Miocene Oswald West mudstones (informal), middle Miocene Astoria Formation (Angora Peak sandstone and Silver Point mudstone members.-informal), middle Miocene basalts of intrusive and extrusive Depoe...

Resource Type:

Masters Thesis