Alaska Volcano Observatory - Preliminary (super 40) Ar/ (super 39) Ar ages from volcanic ash in the upper Usibelli Group, Healy, Alaska: implications for late Miocene sedimentation and initial uplift of the central Alaska Range

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PRELIMINARY (SUPER 40) AR/ (SUPER 39) AR AGES FROM VOLCANIC ASH IN THE UPPER USIBELLI GROUP, HEALY, ALASKA: IMPLICATIONS FOR LATE MIOCENE SEDIMENTATION AND INITIAL UPLIFT OF THE CENTRAL ALASKA RANGE

Triplehorn, D. M., Drake, Jeff, and Layer, P. W., 1999, Preliminary (super 40) Ar/ (super 39) Ar ages from volcanic ash in the upper Usibelli Group, Healy, Alaska: implications for late Miocene sedimentation and initial uplift of the central Alaska Range [abs.]: in Severin, Barb and Anderson, P. M., (eds.), Science in the north: 50 years of change, Arctic Science Conference, 50, Program and Abstracts, Denali National Park and Preserve, AK, Sept 19-22, 1999, p. 178.

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