Figure F30 (continued). C. Planar-bedded evolved tuff with crystals showing a sharp lower contact and a diffuse bioturbated upper contact grading upward into tuffaceous mudstone (Core 41R). D. Alternating tuffaceous mudstone, evolved tuff, and evolved lapilli tuff, as well as closely intercalated tuffaceous mudstone and evolved tuff (Core 41R). (Continued on next page.)
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