摘要：

Examines the ability of voluminous rhyolite lavas to mimic rheomorphic ignimbrites. Association of silicic lavas of large volume with the tracks of mantle plume hotspots; Tapping of a zoned magma chamber with a small aphyric magma underlain by a much larger volume of less-evolved magma; Movement of the lava over and around the tephra deposits.

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