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Text Description: Outcrops for bottom ~1/2 of 1/2dome are breccia (seemingly monolithologic) which may be an old scree slope of ancestral 1/2dome. Huge (up to 4m) blocks of lava. CZF (tan=1.5cm, blk=1cm) and Westdahl (3cm) pumices found. Breccia from base of half dome. Dark rounded scorias, some pumices. References:  Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes |
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