Mcap is a dark brown-gray ash layer 3-12cm thick , that caps the DWP deposit. Well-sorted and composed of gray-brown glass shards, plagioclase crystals, mafic minrerals, and lithic fragments, with <1% light brown-beige pumiceous shards.
Stratigraphy, distribution, and evidence for mafic triggering of the ca. 8.5 ka Driftwood Pumice eruption, Makushin Volcano, Alaska, U.S.A.
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