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Sample: UM4

Sample ID: UM4 [1] [2] [3] [4]
Station ID: UM4
AT Num:
Volcano: Okmok
Possible source:
Eruption:
Collector: Kay, R. W.
Date sampled:
Sample type 1: Lava
Color:
Final unit:
Text Description: Description from Walker (1974): Mafic phenocryst basalt from the Ashishik. Description from Kay et al. (1978): Olivine basalt. Flow down hill from road, Byers (1959) mafic phenocryst basalt unit. Color value from rock-color chart distributed by the Geological Society of America: (N4, IVc)
Sample Location:
Marker
Legend
✕
Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

200 km
100 mi
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References Cited

[1] Trace element variation in the volcanic rocks of Adak and Umnak Islands of the Aleutian Arc, 1974

Walker, A. T. III., 1974, Trace element variation in the volcanic rocks of Adak and Umnak Islands of the Aleutian Arc: Columbia University unpublished M.S. thesis, 39 p.

[2] Pb and Sr isotopes in volcanic rocks from the Aleutian Islands and Pribilof Islands, Alaska, 1978

Kay, R. W., Sun, S. S., and Lee-Hu, C. N., 1978, Pb and Sr isotopes in volcanic rocks from the Aleutian Islands and Pribilof Islands, Alaska: Geochimica et Cosmochimica Acta, v. 42, p. 263-274.

[3] Geochemical constraints on the origin of Aleutian magmas, 1977

Kay, R. W., 1977, Geochemical constraints on the origin of Aleutian magmas: in Talwani, Manik and Pitman, W. C. III., (eds.), Island arcs, deep sea trenches and back-arc basins, American Geophysical Union Maurice Ewing Series 0001, p. 229-242.

[4] Lead isotope studies of young volcanic rocks from oceanic islands, mid-ocean ridges, and island arcs, 1974

Sun, S. S., 1974, Lead isotope studies of young volcanic rocks from oceanic islands, mid-ocean ridges, and island arcs: Columbia University Ph.D. dissertaion, 139 p.