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Text Description: bulk sample of fines-rich sandy blue-grey mud deposit, probably runout from hyperconcentrated sand flow into swam. Cutbank exposes layers of mud intercalated with layers/lenses of debris flow and bedded sand and silt, overlying hyperconcentrated sand flow deposit. Section was remobilized rapidly from primary ignimbrite, but no primary ignimbrite is seen here. Exposed thickness > 4 m. Grey muddy facies has pumice scattered to 1.5 cm. Lithics mostly andesite-dacite lava to 1 cm, but include minor Jn and pyrite-bearing altered lava. Pumice clasts: mostly white pumice References:  Kaguyak dome field and its Holocene caldera, Alaska Peninsula |
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