Early Paleozoic Blueschist from the Schist of Skookum Gulch, Eastern Klamath Mountains, Northern California

Late Ordovician blueschist from the schist of Skookum Gulch, eastern Klamath Mountains, California, is the oldest known blueschist in California and one of the oldest in North America. Lawsonite-bearing glaucophane schist occurs as lenses intimately interlayered with chlorite schist, quartz-albite s...

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