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Following the May 2005 acid crater lake flood at Chiginagak volcano, DGGS has been monitoring crater lake water that flows into Indecision Creek, Mother Goose Lake, and the King Salmon River.This data table provides information on water samples collected between 2005 and 2011 near Chiginagak volcano, including:sample ID, latitude, longitude, location description, pH, and cation and anion chemistry results.
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This data lists the historically active volcanoes of Alaska and the year of the last major eruptive event. The volcanoes listed meet at least one of the following criteria since 1700 CE: (1) documented, unquestioned eruption, or (2) a strongly suspected eruption, often an eruption documented in the historical account with very little information (current geologic knowledge must not contradict the eruption account), or (3) persistent (usually on the order of decades, but certainly longer than several months) fumaroles, with temperatures (where measured) within ~10 degrees C of the boiling point, or (4) significant, measured, volcanic-related, non-eruptive deformation, (5) documented earthquake swarm with strongly...
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Historic image LS_0749 is part of the 'UVA lantern slides' collection; the topic area is 'Volcanoes'. Location is OR (imprecise). The image has the following description: 'Crater Lake, Oregon, Wizard Island .' The image was scanned from a lantern slide as part of the USGS NGGDPP deliverable for 2017-2018. The physical location is 900 Natural Resources Dr., Ste 400, Charlottesville, VA 22903. Library. The author is unknown. The image is dated unknown.
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Historic image LS_0675 is part of the 'UVA lantern slides' collection; the topic area is 'Volcanoes'. Location is Martinique (imprecise). The image has the following description: 'Broken volcanic block, Seche, Martinique .' The image was scanned from a lantern slide as part of the USGS NGGDPP deliverable for 2017-2018. The physical location is 900 Natural Resources Dr., Ste 400, Charlottesville, VA 22903. Library. The author is unknown. The image is dated unknown.
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Index card: Map of Cascades Volcanoes indicating eruptions 7000 to 1000 years before present, as well as eruptions during the last 200 years. Washington, Oregon and California. 1980. (Same as MSH-G-32A/B-80ct).
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Index card: More distant aerial view, looking south, of crater and dome partially obscured by plumes from fumaroles. Skamania County, Washington. July 13, 1980. (Photo by M. Doukas). (Tip of plane wing visible at left edge of photo).
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Index card: View along Smith Creek showing tree blowdown, singed trees, and green trees which missed the blast. Skamania County, Washington. April 26, 1982. (Photo by Lyn Topinka)
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Index card: Rick Hoblitt (back turned) examining small flows of pyroclastic material formed by collapse of steep wall in the May 18, 1980 pyroclastic flow. Skamania County, Washington. July 5, 1980.
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Album caption and index card: Cowlitz River just upstream from Kelso and Longview, Washington. Light area is covered with mud. Cowlitz County, Washington. July 2, 1980.
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Index card: Oblique aerial view of Mount St. Helens in eruption from west, showing upper part of volcano and eruptive plume. 1516 hrs. Skamania County, Washington. May 18, 1980. (Part of plane visible at left).


map background search result map search result map More distant aerial view, looking south, of Mount St. Helens crater and dome partially obscured by plumes from fumaroles. Skamania County, Washington. 1980. Mount St. Helens from south. Skamania County, Washington. 1977. Mount St. Helens. Cowlitz County, Washington. 1980. Historically active volcanoes of Alaska Summit crater lake observations, and the location, chemistry, and pH of water samples near Mount Chiginagak volcano, Alaska: 2004-2011 Geologic image from the Virginia Department of Mines, Minerals and Energy. UVA lantern slides Collection, LS_0675, Martinique Geologic image from the Virginia Department of Mines, Minerals and Energy. UVA lantern slides Collection, LS_0749, OR Cowlitz River just upstream from Kelso and Longview. Cowlitz County, Washington. 1980. Rick Hoblitt examining small flows of pyroclastic material. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption from west. Skamania County, Washington. 1980. Map of eruptions of Cascades Volcanoes. Washington, Oregon and California. 1980. Red laser beam on Harry's Ridge as viewed from Mount St. Helens crater. Skamania County, Washington. 1982. Mount St. Helens. Skamania County, Washington. 1982. Oblique aerial view looking easterly at Mount St. Helens summit and phreatic eruption. Skamania County, Washington. 1980. Ground level view of dome, in shadow, from the west - partially obscured by fumaroles. Mount St. Helens, Skamania County, Washington. 1981. Summit crater lake observations, and the location, chemistry, and pH of water samples near Mount Chiginagak volcano, Alaska: 2004-2011 Mount St. Helens. Cowlitz County, Washington. 1980. Cowlitz River just upstream from Kelso and Longview. Cowlitz County, Washington. 1980. More distant aerial view, looking south, of Mount St. Helens crater and dome partially obscured by plumes from fumaroles. Skamania County, Washington. 1980. Mount St. Helens from south. Skamania County, Washington. 1977. Rick Hoblitt examining small flows of pyroclastic material. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption from west. Skamania County, Washington. 1980. Red laser beam on Harry's Ridge as viewed from Mount St. Helens crater. Skamania County, Washington. 1982. Mount St. Helens. Skamania County, Washington. 1982. Oblique aerial view looking easterly at Mount St. Helens summit and phreatic eruption. Skamania County, Washington. 1980. Ground level view of dome, in shadow, from the west - partially obscured by fumaroles. Mount St. Helens, Skamania County, Washington. 1981. Map of eruptions of Cascades Volcanoes. Washington, Oregon and California. 1980. Historically active volcanoes of Alaska