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Filters: partyWithName: Friedman, Jules D. (X)

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Index card (7ct-11ct, 14ct): Similar views, from north of Spirit Lake, looking across debris toward crater and Mount St. Helens. Geologist at left in photo no. 7ct. Skamania County, Washington. 1980.
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Index card (7ct-11ct, 14ct): Similar views, from north of Spirit Lake, looking across debris toward crater and Mount St. Helens. Geologist at left in photo no. 7ct. Skamania County, Washington. 1980.
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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...
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Index card (58ct-68ct): Various oblique aerial views of Mount St. Helens, showing crater, flanks, rim. Photos 66ct and 67ct include Spirit Lake in distance. A good bit of airborne ash in some of these views. Skamania County, Washington. 1980.
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Index card (58ct-68ct): Various oblique aerial views of Mount St. Helens, showing crater, flanks, rim. Photos 66ct and 67ct include Spirit Lake in distance. A good bit of airborne ash in some of these views. Skamania County, Washington. 1980.
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Index card (58ct-68ct): Various oblique aerial views of Mount St. Helens, showing crater, flanks, rim. Photos 66ct and 67ct include Spirit Lake in distance. A good bit of airborne ash in some of these views. Skamania County, Washington. 1980.
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Index card (58ct-68ct): Various oblique aerial views of Mount St. Helens, showing crater, flanks, rim. Photos 66ct and 67ct include Spirit Lake in distance. A good bit of airborne ash in some of these views. Skamania County, Washington. 1980.
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Album caption: Photomicrographs of dacite vitrophyre. Plane polarized light; top edge of each published photomicrograph is 1.0 mm. B. Sample JDF-6-29-80-2. Pyroxene and plagioclase microlites strewn through a glassy matrix. The remainder of the section consists of vesicles (V) and orthopyroxene (O), plagioclase (P), and opaque oxide (black) phenocrysts. Skamania County, Washington. June 29, 1980. (Identification on published photo only) (Photo by J.D. Friedman) Portion published as figure 311-B in U.S. Geological Survey. Professional paper 1250. 1981. Index card unavailable.
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Index card (15ct-16ct): Views across logs/trees and blast deposit toward crater and Mount St. Helens. Helicopter at right in photo no. 15ct. Skamania County, Washington. 1980.
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Album caption: Photomicrographs of dacite vitrophyre. Plane polarized light; top edge of each published photomicrograph is 1.0 mm. A. Sample JDF-6-29-80-1. Typical flow- banding expressed by pyroxene and plagioclase microlites in glass matrix between plagioclase (P) and hornblende (H) phenocrysts and between vesicles (V). Opaque oxides (black), chiefly titanomagnetite, occur within a hornblende phenocryst and in the adjacent reaction rim. Skamania County, Washington. June 29, 1980. (Identification on published photo only) (Photo by J.D. Friedman) Portion published as figure 311-A in U.S. Geological Survey. Professional paper 1250. 1981. Index card unavailable.


map background search result map search result map Photomicrographs of dacite vitrophyre. Skamania County, Washington. 1980. Photomicrographs of dacite vitrophyre. Skamania County, Washington. 1980. Oblique aerial view across avalanche/blast deposit and devastation. Mount St. Helens, Skamania County, Washington. 1980. View from north of Spirit Lake, looking across debris toward crater and Mount St. Helens. Skamania County, Washington. 1980. View from north of Spirit Lake, looking across debris toward crater and Mount St. Helens. Skamania County, Washington. 1980. View across logs/trees and blast deposit toward crater and Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view of other-than-the-north flank of Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view looking south across ridge to crater and Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view of dome and adjacent area within crater. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of dome and adjacent area within crater. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view across crater rim looking down at dome. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view at rim edge - beheaded Shoestring Glacier. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of ash-covered "worm" lava flow complex. Mount St. Helens, Skamania County, Washington. 1980. Aerial view from the west over the crater rim from a helicopter taking geologists to collect samples and measure temperatures inside the crater. Mount St. Helens, Skamania County, Washington. 1980. Photomicrographs of dacite vitrophyre. Skamania County, Washington. 1980. Photomicrographs of dacite vitrophyre. Skamania County, Washington. 1980. Oblique aerial view across avalanche/blast deposit and devastation. Mount St. Helens, Skamania County, Washington. 1980. View from north of Spirit Lake, looking across debris toward crater and Mount St. Helens. Skamania County, Washington. 1980. View from north of Spirit Lake, looking across debris toward crater and Mount St. Helens. Skamania County, Washington. 1980. View across logs/trees and blast deposit toward crater and Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view of other-than-the-north flank of Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view looking south across ridge to crater and Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view of dome and adjacent area within crater. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of dome and adjacent area within crater. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view across crater rim looking down at dome. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view at rim edge - beheaded Shoestring Glacier. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Oblique aerial view of ash-covered "worm" lava flow complex. Mount St. Helens, Skamania County, Washington. 1980. Aerial view from the west over the crater rim from a helicopter taking geologists to collect samples and measure temperatures inside the crater. Mount St. Helens, Skamania County, Washington. 1980.