Stratigraphic succession, isotopic ages, partial chemical analyses, and sources of certain silicic volcanic ash beds (4.0 to 0.1 m.y.) of the western United States
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2018 ◽
pp. 52-77
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1981 ◽
Vol 86
(B11)
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pp. 10200-10222
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1961 ◽
Vol 72
(9)
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pp. 1421
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Keyword(s):