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article by John Harris Stewart et al published 1984 in Geological Survey Professional Paper

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scientific article published in 1967

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scholarly article by John Harris Stewart et al published 1972 in Geological Survey Professional Paper

scholarly article by John Harris Stewart published 1976 in Geology

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article by John Harris Stewart & Valmore C. LaMarche published 1967 in Geological Survey Professional Paper

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scientific article published in 1997

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scientific article published in March 1984

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article published in 1957

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scholarly article by Robert Allen Cadigan & John Harris Stewart published 1971 in Geological Survey Professional Paper

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