United States Geological Survey YearbookThe Survey, 1985 - Geology |
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Page 13
The terminus of Columbia Glacier as viewed from Heather Island on August 14,
1984. Note the immense grounded icebergs in the foreground. Mount Columbia (
left) and Mount Witherspoon (right) are visible in the background. (Photograph by
...
The terminus of Columbia Glacier as viewed from Heather Island on August 14,
1984. Note the immense grounded icebergs in the foreground. Mount Columbia (
left) and Mount Witherspoon (right) are visible in the background. (Photograph by
...
Page 14
Changes in the length of Columbia Glacier since 1976. Upward trend represents
advance, downward trend represents retreat. Heavy line is observed behavior of
the terminus, averaged over the width. Light lines labeled (a), [b], and (d) show ...
Changes in the length of Columbia Glacier since 1976. Upward trend represents
advance, downward trend represents retreat. Heavy line is observed behavior of
the terminus, averaged over the width. Light lines labeled (a), [b], and (d) show ...
Page 15
Longitudinal section of flow of 39 feet per day, so the 1984, a portion of the
glacier the tfirmimls of Columbia calving in midglacier was averag- “surged” out
in front of the rest of Glacier' as of August 1984; the ' 89 lineal feet of lacier ice the
...
Longitudinal section of flow of 39 feet per day, so the 1984, a portion of the
glacier the tfirmimls of Columbia calving in midglacier was averag- “surged” out
in front of the rest of Glacier' as of August 1984; the ' 89 lineal feet of lacier ice the
...
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Contents
The Year in Review | 1 |
100000Scale Digital Cartographic Data Base for Federal Requirements | 4 |
Disintegration of the Lower Reach of Columbia Glacier Alaska Now Under | 13 |
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activities Administration Alaska analysis aquifer areas Bacillus cereus basins Bureau California cartographic cartographic data base City coal Columbia Glacier Commission Control Denver Department of Public digital cartographic data digital data earthquake Environmental eruption Federal agencies Federal Bldg feet fiscal year 1984 flow fluid inclusions geochemical geographic geographic information systems Geologist geophysical glacier ground water hazards High Plains hydrologic ical ical Survey image map information systems investigations irrigation Lake land Landsat lava located Loki Patera major Management Mauna Loa million mineral deposits mineral resources models monitoring National Center National Mapping Division Office offshore Parkfield Parkfield earthquake Planning plume potential production Puerto Rico quadrangle radar Regional remote sensing River rocks sediment seismic Service sources square miles STOP studies sulfur surface Survey scientists Survey’s techniques tion topographic maps trends U.S. Geological Survey Volcano Water Conservation District Water District zone