Cretaceous glassy welded tuffs, Lewis and Clark County, Montana

Julian Devreau Barksdale

doi:10.2475/ajs.249.6.439

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Barksdale, J. D. (1951). Cretaceous glassy welded tuffs, Lewis and Clark County, Montana. American Journal of Science, 249(6), 439–443. https://doi.org/10.2475/ajs.249.6.439

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Cretaceous Glassy Welded Tuffs, Lewis and Clark County, Montana