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Processes which Distribute Supraglacial Debris on the Khumbu Glacier, Nepal Himalaya

  • M. Nakawo (a1), S. Iwata (a2), O. Watanabe (a3) and M. Yoshida (a3)

Abstract

The thickness of supraglacial debris on the Khumbu Glacier, Nepal Himalaya, has been mapped by a combination of direct measurements and morphological and lithological studies. All three processes, englacial, supraglacial, and subglacial, must be considered in establishing the distribution of debris. Taking advantage of the lithological characteristics of the debris and their bedrock source, the denudation rate of the schistose bedrock was estimated to be about 0.02 mm a−1. A rough estimate of the production rate of supraglacial debris indicated that most of the present debris has formed since the last advance of the glacier, which took place a few hundred years B.P.

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References

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