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Global Positioning System receiver (dome on pole) and seismometer (box on ground in distance) at a volcano monitoring station for Three Sisters in Central Oregon. Solar panel mounted to pole.
Global Positioning System receiver (dome on pole) and seismometer (box on ground in distance) at a volcano monitoring station for Three Sisters in Central Oregon. Solar panel mounted to pole.
Juvenile Chinook salmon monitoring below the The Dalles Dam on the Columbia River.
Juvenile Chinook salmon monitoring below the The Dalles Dam on the Columbia River.
Roaring Spring on the McKenzie River, Oregon
Sagebrush-dominated ecoregions in the western United States (sagebrush cover types shown in various shades of yellow, pink, and blue-grey).
Sagebrush-dominated ecoregions in the western United States (sagebrush cover types shown in various shades of yellow, pink, and blue-grey).
During Ocean Drilling Program Leg 204, nine sites were cored and wireline logged on the Oregon continental margin to determine the distribution and concentration of gas hydrates in an accretionary ridge setting, investigate the mechanisms that transport methane and other gases into the gas hydrate stability zone, and obtain constraints on physical properties of
During Ocean Drilling Program Leg 204, nine sites were cored and wireline logged on the Oregon continental margin to determine the distribution and concentration of gas hydrates in an accretionary ridge setting, investigate the mechanisms that transport methane and other gases into the gas hydrate stability zone, and obtain constraints on physical properties of
(Top) 1996–2000 interferogram draped over a 30-m DEM and showing uplift centered a few kilometers (miles) west of South Sister volcano. (Bottom) Geochemical data on top of the 1996–2000 interferogram. The columns show chloride (Cl) and sulfate (SO4) concentrations at sampled springs.
(Top) 1996–2000 interferogram draped over a 30-m DEM and showing uplift centered a few kilometers (miles) west of South Sister volcano. (Bottom) Geochemical data on top of the 1996–2000 interferogram. The columns show chloride (Cl) and sulfate (SO4) concentrations at sampled springs.
Large-scale poster describing USGS work.
The USGS mapped Crater Lake, Oregon using sonar, in cooperation with the National Park Service, the University of New Hampshire, and C&C Technologies.
Large-scale poster describing USGS work.
The USGS mapped Crater Lake, Oregon using sonar, in cooperation with the National Park Service, the University of New Hampshire, and C&C Technologies.
Corbicula sampling in the Bonneville Pool, Columbia River.
Corbicula sampling in the Bonneville Pool, Columbia River.
USGS scientist collecting samples at Crater Lake, Oregon.
USGS scientist collecting samples at Crater Lake, Oregon.
View from the SE rim of McDermitt caldera, Nevada and Oregon, showing rhyolite lavas overlain by thin outflow McDermitt Tuff in the south wall of the caldera. The low area that makes up most of the photo is intracaldera tuffaceous sediment. This is Thacker Pass, the site of largest and highest-grade lithium deposits in the region.
View from the SE rim of McDermitt caldera, Nevada and Oregon, showing rhyolite lavas overlain by thin outflow McDermitt Tuff in the south wall of the caldera. The low area that makes up most of the photo is intracaldera tuffaceous sediment. This is Thacker Pass, the site of largest and highest-grade lithium deposits in the region.
Folds in outflow sheets of McDermitt Tuff, from the eruption that formed McDermitt Caldera in Nevada and Oregon about 16.4 million years ago. The folding is called “rheomorphism” and occurred as the hot ash deposit flowed under its own weight shortly after it was deposited over preexisting topographic highs and lows. The texture resembles that of rhyolit
Folds in outflow sheets of McDermitt Tuff, from the eruption that formed McDermitt Caldera in Nevada and Oregon about 16.4 million years ago. The folding is called “rheomorphism” and occurred as the hot ash deposit flowed under its own weight shortly after it was deposited over preexisting topographic highs and lows. The texture resembles that of rhyolit
Thermal infrared mosaic of Quartzville Creek, OR. These images were captured on the year 2000 as part of an airborne thermal infrared survey conducted in the Santiam River basin, OR. The images were orthorectified and mosaicked into a single raster in order to identify and visualize thermal heterogeneity.
Thermal infrared mosaic of Quartzville Creek, OR. These images were captured on the year 2000 as part of an airborne thermal infrared survey conducted in the Santiam River basin, OR. The images were orthorectified and mosaicked into a single raster in order to identify and visualize thermal heterogeneity.
Three Sisters volcanoes (left to right - South, Middle, and North) viewed from the south, Oregon. Foreground rhyolite Newberry flow is one of most recent eruptive units (2.2 ka).
Three Sisters volcanoes (left to right - South, Middle, and North) viewed from the south, Oregon. Foreground rhyolite Newberry flow is one of most recent eruptive units (2.2 ka).
During the May 18, 1980 eruption, at least 17 separate pyroclastic flows descended the flanks of Mount St. Helens. Pyroclastic flows typically move at speeds of over 60 miles per hour (100 kilometers/hour) and reach temperatures of over 800 Degrees Fahrenheit (400 degrees Celsius).
During the May 18, 1980 eruption, at least 17 separate pyroclastic flows descended the flanks of Mount St. Helens. Pyroclastic flows typically move at speeds of over 60 miles per hour (100 kilometers/hour) and reach temperatures of over 800 Degrees Fahrenheit (400 degrees Celsius).
1914 Photograph of Seining Salmon on the Columbia River, Oregon.
1914 Photograph of Seining Salmon on the Columbia River, Oregon.
Remnant of Villard Glacier is in cirque below. Thick summit lava flow makes up "Glisan Pinnacle," which overlies hundreds of thin rubbly lava flows that are intercalated with red-oxidized agglutinate and scoria falls exposed on 800-m- (2600-ft-) high face below. Flows that form ridge at upper right are thicker than those on most of edifice.
Remnant of Villard Glacier is in cirque below. Thick summit lava flow makes up "Glisan Pinnacle," which overlies hundreds of thin rubbly lava flows that are intercalated with red-oxidized agglutinate and scoria falls exposed on 800-m- (2600-ft-) high face below. Flows that form ridge at upper right are thicker than those on most of edifice.
Three Sisters annotated photograph viewed from south to North from Broken Top, Oregon.
Three Sisters annotated photograph viewed from south to North from Broken Top, Oregon.
Erratics located on a cinder cone on the northeast flank of Newberry Volcano, Oregon.
Erratics located on a cinder cone on the northeast flank of Newberry Volcano, Oregon.
Photo of Hinmatóowyalahtq̓it (Chief Joseph) taken in November 1877 by O.S. Goff in Bismarck. From Wikipedia (https://commons.wikimedia.org/wiki/File:Chief_Joseph-1877.jpg).
Photo of Hinmatóowyalahtq̓it (Chief Joseph) taken in November 1877 by O.S. Goff in Bismarck. From Wikipedia (https://commons.wikimedia.org/wiki/File:Chief_Joseph-1877.jpg).
