Wentworth and Powers have described four stages of glaciation on Mauna Kea, Hawaii. The type localities of the deposits have been studied by the writer, and only the latest or Makanaka deposits can be accepted as definitely glacial drift. The deposits of the first and second stages are paroxysmal explosion deposits. Those of the third stage are a fanglomerate that could have been laid down in early Wisconsin time by floods caused by hot lava melting the icecap.
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