Filters: Tags: Skamania County, Washington (X)
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Album caption: Oblique aerial view of Mount St. Helens amphitheater as viewed from the north on July 22, 1980, sequence (9A-G) (photos nos. 17-23), showing the formation of a pyroclastic density flow during the early part of the third eruptive pulse. A, 1900:59; B, 1901:03 PDT, timed photographs by the author; C, 1901:08 PDT, photo by Harry X. Glicken, time from comparison with a timed photograph that is not shown; D,E,F,G, untimed sequence taken within 30 seconds after C, by Harry X. Glicken. Skamania County. Washington. (See also MSH-July 22, 1980 nos. 69ct-75ct) Published as figure 9-D in U.S. Geological Survey. Professional paper 1335. 1986. Index card unavailable.
Categories: Image;
Tags: MSH-Hoblitt, R.P. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Typed caption accompanying slide: 19:01 pyroclastic flow continues its advance as helicopter moves west. Skamania County, Washington. (Photo by H. Glicken) Note: Slide numbers 43 - 50 were taken at 19:01 and show the pyroclastic flow as it advances northward. Skamania County, Washington. July 22, 1980. Slide number 51 was taken at 19:02. Slide numbers 52 - 55 were taken at 19:03. Slide numbers 56 - 57 were taken at 19:04. Slide numbers 58 and 59 were taken at 19:04 and 19:05. Slide numbers 60 - 62 are views of the eruption and were taken at 19:06. Slide no. 52, msh_vjw00052_ct, is highlighted in this photo record. Slide no. 52 typed caption: View of eruption at 19:03, the plume develops a mushroom-like...
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Glicken, H.X. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card (No. 100ct-112ct): Mount St. Helens in eruption on August 7, 1980. Skamania County, Washington. August 7, 1980. Photo 101ct published as Figure 293-A and photo 107ct published as Figure 293-B in U.S. Geological Survey. Professional Paper 1250. 1981.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Lipman, P.W. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: Aerial view of May 18, 1980 eruption of Mount St. Helens from the south. Skamania County, Washington. (Photo by J. Rosenbaum)
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: Aerial view of bulge from the east on May 7, 1980. Skamania County, Washington.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: Near view of south side of dome. Skamania County, Washington. October 24, 1980.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Leighley, T. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: Phreatic eruption from north on April 12, 1980. Skamania County, Washington.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: Aerial view of explosion pit on pumice plain. Skamania County, Washington. September 30, 1980.
Index card: Shoestring Glacier, southeast side of Mount St. Helens. Skamania County, Washington. September, 1970.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Mount St. Helens Collection,
Mullineaux, D.R. Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: On Coldwater Ridge, ash is about 18 inches thick. Geologist in trench for scale. Skamania County, Washington. 1980.
Index card: Plot of number of magnitude 3 and greater earthquakes per hour, March 10 through May 29, 1980. Skamania County, Washington.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: Blast deposits on South Fork Coldwater Creek. Skamania County, Washington. May 20, 1980.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card: View down (west) the North Fork Toutle River. Cowlitz and Skamania Counties, Washington. May 20, 1980.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Cowlitz County, Washington,
Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Index card: Oblique aerial view to the north showing the "two-tone" Mount St. Helens - an appearance produced by prevailing easterly winds during the initial activity of Mount St. Helens. Left half of mountain is white snow; right half is colored gray by ash cover. Mount Rainier visible in the background. Skamania County, Washington. March 30, 1980. Portion published on page 5 in U.S. Geological Survey Eruptions of Mount St. Helens: Past, Present, and Future by Robert I. Tilling. 1984.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Miller, C.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Index card, no. 217ct-264ct: Group of oblique aerial views of Mount St. Helens in eruption; time taken runs from 1326 hrs to 1815 hrs. Photos include near and distant views, eruption and eruption plume, pyroclasitc flows, ash. Skamania County, Washington. May 18, 1980. (Various amounts of plane wing or window frame visible in most views).
Index card: Spirit-level tilt station next to Mount St. Helens dome. Skamania County, Washington. May 20, 1982. (Photo by Donald A. Swanson)
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Swanson, D.A. Collection,
Volcanoes,
Album caption, slide description, and slide index card: MSH-Branch of Exhibits no. 19cp: Mount St. Helens. Aerial view of barren slope devastated by May 18 eruption. Skamania County, Washington. June 1980. (Photo by J. DeVine) (Same as MSH-BE-VOLC-0033ct) (msh_boe_volc0033_ct).
Album caption, slide description, and slide index card: MSH-Branch of Exhibits no. 8cp: Mount St. Helens. Aerial view. Minor steam eruption from summit crater, from northeast, 10:15 a.m. Skamania County, Washington. May 31, 1980. (Photo by T. Casadevall) (Same as MSH-BE-VOLC-0022ct)
Slide description and index card: Aerial photographs of the lava dome that extruded into the crater of Mount St. Helens during the latter part of June 1980.The volcano's dacite lava has a pasty consistency when it is molten, and it tends to pile up rather than to flow laterally. This dome, which was largely destroyed in a subsequent eruption on July 22, 1980, was, at this stage, about 1,200 feet across and 200 feet high. Its rough, shattered appearance resulted mainly from the expansion and shattering of the solidified outer crust as more molten lava was forced upward by the great pressure in the magma chamber underlying the volcano. B, View from the west over the crater rim from a helicopter taking geologists to...
Slide description: Oblique aerial view looking southeast, phreatic eruption plume continuing to build. 1445 hrs. Skamania County, Washington. April 10, 1980. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Hoblitt, R.P. Collection,
MSH-Hoblitt, R.P. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
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