Gary Barton (USGS) and Jeff Laufle (U.S. Army Corps of Engineers) carried out a particle size analysis of the surface riverbed material on the right bank (facing downstream) of the Snake River about three miles below Ice Harbor Dam near Burbank, WA.
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Particle size analysis of the surface riverbed material
Gary Barton (USGS) and Jeff Laufle (U.S. Army Corps of Engineers) carried out a particle size analysis of the surface riverbed material on the right bank (facing downstream) of the Snake River about three miles below Ice Harbor Dam near Burbank, WA.
Mount St. Helens: Instrumentation and Dome Growth, Nov-Dec 2004
By late October 2004, a whaleback-shaped extrusion of solid lava (called a spine) emerged from Mount St. Helens' crater floor. The 2004–2008 lava dome grew by continuous extrusion of degassed lava spines that had mostly solidified at less than 1 km (0.62 mi) beneath the surface.
By late October 2004, a whaleback-shaped extrusion of solid lava (called a spine) emerged from Mount St. Helens' crater floor. The 2004–2008 lava dome grew by continuous extrusion of degassed lava spines that had mostly solidified at less than 1 km (0.62 mi) beneath the surface.
Aerial view, Mount St. Helens crater and dome, with new growth
Aerial view, Mount St. Helens crater and dome, with new growth, from the northwest.
Aerial view, Mount St. Helens crater and dome, with new growth, from the northwest.
Evening view of Mount St. Helens from Johnston Ridge Observatory (JRO)
Evening view of Mount St. Helens from the Johnston Ridge Observatory (JRO).
Evening view of Mount St. Helens from the Johnston Ridge Observatory (JRO).
Glacier uplift against the south crater wall caused by compression...
Glacier uplift against the south crater wall caused by compression of growing dome in Mount St. Helens crater. November 29, 2005
Glacier uplift against the south crater wall caused by compression of growing dome in Mount St. Helens crater. November 29, 2005
Growing lava dome within Mount St. Helens' crater Nov. 2005
Growing lava dome within Mount St. Helens' crater viewed from the west. November 2005
Growing lava dome within Mount St. Helens' crater viewed from the west. November 2005
Mount St. Helens dome from the south. Nov. 2005
Mount St. Helens dome from the south. November 2005
Mount St. Helens dome from the south. November 2005
Mount St. Helens new lava dome as seen from the north-NE.
Mount St. Helens new lava dome as seen from the north-northeast.
Mount St. Helens new lava dome as seen from the north-northeast.
Mount St. Helens' dome from the Sugar Bowl remote camera. Image has...
Mount St. Helens' dome from the Sugar Bowl remote camera. Image has been converted to black/white for clarity.
Mount St. Helens' dome from the Sugar Bowl remote camera. Image has been converted to black/white for clarity.
Mount St. Helens' new dome, from NW. Nov. 2004.
Mount St. Helens' new dome, from the northwest. November 2004.
Mount St. Helens' new dome, from the northwest. November 2004.
Mount St. Helens' new growth as seen from the south-SE.
Mount St. Helens' new growth as seen from the south-southeast.
Mount St. Helens' new growth as seen from the south-southeast.
Photogeologic map of Mount St. Helens dome. Photograph annotated w...
Photogeologic map of Mount St. Helens dome. Photograph annotated with identified features within the volcano's crater. November 29, 2004.
Photogeologic map of Mount St. Helens dome. Photograph annotated with identified features within the volcano's crater. November 29, 2004.
USGS scientists on Mount St. Helens' crater rim looking down on dom...
USGS scientists on Mount St. Helens' crater rim looking down on dome. The new part of the dome is to the left, the 1980-86 dome is below the scientists on the right.
USGS scientists on Mount St. Helens' crater rim looking down on dome. The new part of the dome is to the left, the 1980-86 dome is below the scientists on the right.
USGS scientists on Mount St. Helens' crater rim setting up new came...
USGS scientists on Mount St. Helens' crater rim setting up new camera station ("Brutus") to look at the new dome. The camera station is to be manned manually, weather and eruption permitting.
USGS scientists on Mount St. Helens' crater rim setting up new camera station ("Brutus") to look at the new dome. The camera station is to be manned manually, weather and eruption permitting.
Houghton Lake Michigan frozen and cracked
West-side of Houghton Lake during winter when frozen showing pressure cracks in ice.
West-side of Houghton Lake during winter when frozen showing pressure cracks in ice.
Aerial view, Mount St. Helens crater and dome, with new growth
Aerial view, Mount St. Helens crater and dome, with new growth, from the northeast.
Aerial view, Mount St. Helens crater and dome, with new growth, from the northeast.
Glenwood Canyon, Colorado: Interstate 70 Rockslide of November 25, 2004
The rockslide occurred about nine miles east of Glenwood Springs in Glenwood Canyon (Colorado) at 7:42 am, November 25, 2004, according officials from the Colorado Department of Transportation (CDOT).
The rockslide occurred about nine miles east of Glenwood Springs in Glenwood Canyon (Colorado) at 7:42 am, November 25, 2004, according officials from the Colorado Department of Transportation (CDOT).
Processing Emerging-Contaminants Bed-Sediment Sample
John Clune and Connie Loper, PA Water Science Center, processing an emerging-contaminants bed-sediment sample at Rock Creek near Gettysburg, PA.
John Clune and Connie Loper, PA Water Science Center, processing an emerging-contaminants bed-sediment sample at Rock Creek near Gettysburg, PA.
Close-in view of the growing lava dome within Mount St. Helens' cra...
Close-in view of the growing lava dome within Mount St. Helens' crater, as seen from the east. November 2005
Close-in view of the growing lava dome within Mount St. Helens' crater, as seen from the east. November 2005
Dome within Mount St. Helens' crater, aerial view from the east.
Dome within Mount St. Helens' crater, aerial view from the east.
Dome within Mount St. Helens' crater, aerial view from the east.
Mount St. Helens dome as seen from Sugar Bowl, on NE flank. Nov. 2005
Mount St. Helens dome as seen from Sugar Bowl, on the northeast flank. November 2005
Mount St. Helens dome as seen from Sugar Bowl, on the northeast flank. November 2005