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Text Description: Dike seen intruding wall, cuts through cinders (which seem to be more massive here). Not sure if dike cuts Fisher Tuff, as we can't get that high up today. Cinders seem to weather grey in outcrop, looking like massive lava or ignimbrite Sparsely plag phyric, light grey, dense dike lava. References:  Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes |
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