Changes in ice thickness of Nisqually Glacier. Mount Rainier National Park, Washington. 1944. (Panorama in two parts.)
Dates
Date Taken
1944-09-03
Summary
Changes in ice thickness of Nisqually Glacier occurring about 4,000 feet (1,200 meters) up-glacier from profile 3 were measured on the photographs in series 15. The upper end of the measurement is the base of a lava flow, and the lower end is the top of the ice. This 1944 view illustrates the general nature of the upper area after many years of recession, just preceding the ice advance of the late 1940s. The ice discharge from Wilson Glacier is lost, and large areas of bedrock near its mouth are exposed. The falls on the far left are relatively large compared with their condition in later years (1957-65). Note the opposite direction of cleavage in crevassing patterns visible in midglacier on the lower left. It is evident that the debris [...]
Summary
Changes in ice thickness of Nisqually Glacier occurring about 4,000 feet (1,200 meters) up-glacier from profile 3 were measured on the photographs in series 15. The upper end of the measurement is the base of a lava flow, and the lower end is the top of the ice. This 1944 view illustrates the general nature of the upper area after many years of recession, just preceding the ice advance of the late 1940s. The ice discharge from Wilson Glacier is lost, and large areas of bedrock near its mouth are exposed. The falls on the far left are relatively large compared with their condition in later years (1957-65). Note the opposite direction of cleavage in crevassing patterns visible in midglacier on the lower left. It is evident that the debris load comes from sources along both sides of Nisqually Glacier and from Wilson Glacier. Bedrock areas shown in the foreground were inundated by ice as the glacier thickened and expanded. Mount Rainier National Park, Washington. September 3, 1944. Panoama in two parts. Photo 15 and 16. (see vfm00015) Figure 12, U.S. Geological Survey Professional paper 631.
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