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Map includes accompanying text that describes the map units, discusses the quadrangle's geologic history, and assesses the quadrangle's geologic hazards and resources
This field trip consists of two geologic tours. On Tour 1, the Tertiary sedimentary rocks exposed along the Yaquina River between Newport and Toledo, Oregon, will be examined. This tour will start at the...
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.
Map includes accompanying text that describes the map units, discusses the quadrangle's geologic history, and assesses the quadrangle's geologic hazards and resources
The purpose of this project is to improve geologic mapping in the Portland urban area in order to better understand earthquake hazards. This coverage represent the most up-to-date, digital geology coverage...
Introduction -- Regional geology -- Description of the units -- Olivine basalt porphyry -- Tuffaceous shale and volcanic sandstone -- Lower submarine breccia -- Palagonitic pillow breccia -- Crystal vitric tuff...
The purpose of this paper is to give a brief description of the volcano, and to report progress in the detailed mapping and petrologic study of its caldera. The increasing use of the Paulina and East Lake areas...
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.