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Oregon Water Science Center

Columbia River Basalt Stratigraphy in the Pacific Northwest

In Cooperation with the Oregon Water Resources Department




CRBG Stratigraphic Nomenclature Chart

Importance of Understanding CRBG Stratigraphy

Sources of information




Terrence Conlon
(503) 251-3232

Links to Further Information about the Columbia River Basalt Group

USGS Columbia River Interdisciplinary Science Explorer Website

USGS PNW Geologic Mapping and Urban Hazards

USGS Willamette Basin Ground Water Study

Geology of Lowland Aquifers in NW Oregon

USGS Umatilla Basin Ground Water Study

USGS Cascades Volcano Observatory: Columbia Plateau, Columbia River Basalt Group

Washington State Department of Natural Resources—Geology

Forest Service Website of evolution of Columbia River Gorge, including discussion of Columbia River Basalt Group geology and glossary)

Mantle Plumes’ discussion of possible origins of Columbia River Basalt Group

Oregon State University—Columbia River Flood Basalt Province, Idaho, Washington, Oregon

Columbia River Basalt Province in Digital Geology of Idaho

Oregon Water Science Center Studies Page
Oregon Water Science Center Home Page

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