Sample: 47AC113


Sample ID: 47AC113 [1] [2]
Station ID: 47AC113
AT Num:
Volcano: Semisopochnoi
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled: 1947-01-01
Sample type 1: Tuff
Color:
Final unit: CFE ignimbrite - bulk
Text Description: A composite representing the full thickness of the tuff, as exposed in a gully at 122,600' E., 284,250' N. No section was cut as it was not certain that one section could properly represent the composite. It is probable that the composite sample is contaminated dacite.
Sample Location:

References Cited

[1] Geologic reconnaissance of Semisopochnoi Island, western Aleutian Islands, Alaska, 1959

Coats, R. R., 1959, Geologic reconnaissance of Semisopochnoi Island, western Aleutian Islands, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-O, p. 477-519, 1 sheet, scale 1:25,000.
full-text PDF 1.4 MB
plate 59 PDF 2.7 MB

[2] Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western Aleutian Islands, Alaska, 2018

Coombs, M.L., Larsen, J.F., and Neal, C.A., 2018, Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western Aleutian Islands, Alaska: U.S. Geological Survey Scientific Investigations Report 2017-5150, 32 p., https://doi.org/10.3133/sir20175150.