LOADING...
Please be patient.
The CD contains a quadrangle map file and a text in Adobe PDF format. The text file describes the map units, discusses the quadrangle's geologic history, and assesses the quadrangle's geologic hazards and...
The CD contains a quadrangle map file and a text in Adobe PDF format. The text file describes the map units, discusses the quadrangle's geologic history, and assesses the quadrangle's geologic hazards and...
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.
The Ruth Mine is a base-metal vein deposit near the eastern margin of a reported porphyry copper deposit in the Western Cascade Range in Oregon. Uplift of the Western Cascade Range has resulted in a deeply...
The CD contains a quadrangle map file and a text in Adobe PDF format. The text file describes the map units, discusses the quadrangle's geologic history, and assesses the quadrangle's geologic hazards and...
Since 1978, the Division of Geology and Earth Resources of the Washington Department of Natural Resources has participated in the U.S. Department of Energy's (USDOE) StateCoupled Geothermal Resource Program....
Hyaloclastic sediment forms an identifiable stratigraphic interval within the Troutdale Formation that can be traced from the Bridal Veil channel to the Portland basin. Hyaloclastic sediment composed chiefly...
The net rotation of Earth’s lithosphere with respect to the underlying mantle is the longestwavelength component of toroidal flow in the mantle and is sensitive to both mantle buoyancy structure and lateral...