Observations on the Nordenskiöld and Neighboring Glaciers of Spitsbergen, 1921
| Autor: | George Slater |
|---|---|
| Rok vydání: | 1925 |
| Předmět: | |
| Zdroj: | The Journal of Geology. 33:408-446 |
| ISSN: | 1537-5269 0022-1376 |
| DOI: | 10.1086/623209 |
| Popis: | The observations recorded in this paper consisted chiefly of measurements of the rate of melting and the relationship of pressure to movement of the ice. A definite relationship was established between the rate of melting of the marginal ice cliffs of the Nordenskiold Glacier and the air temperature recorded at Bruce City and the Green Harbor Meteorological Station. For each degree Fahrenheit of average maximum monthly air temperature above freezing-point, the amount of retreat of the ice was .5 feet per month, or 5 feet for August, 1921. The rate of movement of the central crevassed area over a period of 26 days was 51.1 feet, or 1.9 feet per day during August, 1921. In addition to this, directed concentrated pressure was found to produce movement in two directions: a) Movement of neve ice in particular in the direction of pressure along thrust planes associated, in the Sven Glacier, with contortion and imbricate structure. b) Irregular movement or "slide" at right angles to the direction of pressure. Th... |
| Databáze: | OpenAIRE |
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