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Sample: 74-AMm-86

Sample ID: 74-AMm-86 [1] [2]
Station ID: 74-AMm-86
AT Num:
Volcano: Drum
Possible source:
Eruption:
Collector: Miller, T. P.
Date sampled: 1974-00-00
Sample type 1: Lava
Color:
Final unit:
Text Description: Early Dacite Domes and Associated Flows. Three hornblende dacite domes (1, 2, 3) on east flank of Mount Drum were apparently erupted early in dome-building stage of second cycle of volcanic activity and may represent a distinct phase of second cycle associated with cone-building two-pyroxene andesite and dacite flows (Qzaf). All domes have been dissected by erosion, and dome 1, an extensive dome-flow complex with a surface area greater than 10 sq km, is overlain by widespread deposits of glacial drift (Qog).
Sample Location:

References Cited

[1] Eruptive history and petrology of Mount Drum volcano, Wrangell Mountains, Alaska, 1994

Richter, D.H., Moll-Stalcup, E.J., Miller, T.P., Lanphere, M.A., Dalrymple, G.B., and Smith, R.L., 1994, Eruptive history and petrology of Mount Drum volcano, Wrangell Mountains, Alaska: Bulletin of Volcanology, v. 56, n. 1, p. 29-46.

[2] Geologic map of the Gulkana A-2 quadrangle, Alaska, 1979

Richter, D. H., Smith, R. L., Yehle, L. A., and Miller, T. P., 1979, Geologic map of the Gulkana A-2 quadrangle, Alaska: U.S. Geological Survey Geological Quadrangle Map GQ 1520, unpaged, 1 plate, scale 1:63,360.