Basal debris
Rock fragments and ground-up bedrock incorporated into the base of a glacier.
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Partly rounded boulders in the basal debris layer of the advancing front of Solheimerjökull, Iceland. Photo M. J. Hambrey. |
Rock fragments and ground-up bedrock incorporated into the base of a glacier.
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Partly rounded boulders in the basal debris layer of the advancing front of Solheimerjökull, Iceland. Photo M. J. Hambrey. |