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Text Description: Cinders (scoria) on top here black, aphyric. Clasts up to 50 cm. Below is breccia, which appears to be plastered against the side of the wall. Breccia is also seen in outcrop at the top of the wall here, and very thick (5-10 m) just N. of here on the wall. Breccia, lapilli poor, rounded clasts, small, but can also have ~ 25 cm angular clasts References:  Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes |
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