Late Pleistocene Detrital Sediment Yield of the Jura Glacier, France
| Autor: | Michel Campy, Jean-François Buoncristiani |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Hydrology
010506 paleontology geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Pleistocene Sediment Glacier 01 natural sciences Arts and Humanities (miscellaneous) Denudation Erosion General Earth and Planetary Sciences Glacial period Meltwater Sedimentary budget Geology 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Quaternary Research. 56:51-61 |
| ISSN: | 1096-0287 0033-5894 |
| Popis: | Measures of present-day glacial erosion vary widely with the technique employed. This paper quantifies the glacial material trapped in a proglacial lake during the Würm glacial period. The Combe d'Ain site was occupied by a meltwater lake where all the detrital material entering it from the Jura glacier accumulated. Sediment yield is computed from three factors: (1) the size of the sediment source area, (2) the length of time the system operated, and (3) the volume of sediment trapped. The sediment budget of the lake system suggests a detrital sediment yield of 4400±1700 metric tons per square kilometer and per calendar year. This represents a denudation rate of 1.6±0.6 mm per year, illustrating that mechanical erosion by the Jura glacier is more intensive than other processes of erosion. |
| Databáze: | OpenAIRE |
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