Petrology -- Oregon

Geology and Petrography of Crater Lake National Park.

United States Geological Survey

A contribution to the petrography of the John Day Basin

Frank C. Calkins

The geology and petrography of Crater lake national park

by Joseph Silas Diller and Horace Bushnell Patton.

A description of some Oregon rocks and minerals.

Hollis M. Dole

Obsidian studies in Oregon: an introduction to obsidian and an investigation of selected methods of obsidian characterization utilizing obsidian collected at prehistoric quarry sites in Oregon

Craig Eugene Skinner.

The geology and petrography of Crater Lake National Park.

Diller, Joseph Silas

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

by Martin J. Streck.

Petrology of the southwest quarter of the Pine quadrangle Oregon.

John Paul Fitzsimmons

A description of some Oregon rocks and minerals

by Lawrence L. Brown.

Petrology of the welded tuff of Devine Canyon, southeastern Oregon

by Robert C. Greene.