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Sample: 98JLOK5A

Sample ID: 98JLOK5A [1] [2] [3] [4]
Station ID: 98JLOK5A
AT Num:
Volcano: Okmok
Possible source:
Eruption: Okmok CFE II
Collector: Larsen, J. F.
Date sampled: 1998-01-01
Sample type 1: pyroclastic density current
Color:
Final unit: Hcfe2
Text Description: 2050 BP Okmok II basaltic andesite ash flow scoria. Basaltic andesite scoria from top of ash flow sampled in a small quarry-like depression. Looks again very similar to samples 3a and 1b. Embedded lithics in matrix
Sample Location:
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Legend
✕
Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

20 km
10 mi
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References Cited

[1] Magmatic differentiation at an island-arc caldera: a stratigraphically constrained multi-isotope study of Okmok Volcano, Aleutian Islands, Alaska, 2004

Finney, B.M., 2004, Magmatic differentiation at an island-arc caldera: a stratigraphically constrained multi-isotope study of Okmok Volcano, Aleutian Islands, Alaska: University of Bristol Ph.D. dissertation, 296 p.

[2] Late Pleistocene and Holocene caldera-forming eruptions of Okmok Caldera, Aleutian Islands, Alaska, 2007

Larsen, J. F., Neal, Christina, Schaefer, Janet, Beget, Jim, and Nye, Chris, 2007, Late Pleistocene and Holocene caldera-forming eruptions of Okmok Caldera, Aleutian Islands, Alaska, in Eichelberger, John, Gordeev, Evgenii, Izbekov, Pavel, Kasahara, Minoru, and Lees, Jonathan, eds., Volcanism and Subduction: The Kamchatka Region: Geophysical Monograph 172, American Geophysical Union, p. 343-364.

[3] Electron probe microanalytical data of minerals and glass from rock samples from Okmok volcano, Alaska, 2022

Larsen, J.F., Schaefer, J.R., and Cameron, C.E., 2022, Electron probe microanalytical data of minerals and glass from rock samples from Okmok volcano, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2022-6, 13 p. https://doi.org/10.14509/30853.

[4] Geologic map of Okmok Volcano, 2023

Larsen, J.F., Neal, C.A., Schaefer, J.R., and Nye, C.J., 2023, Geologic map of Okmok Volcano: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2023-1, 63 p., 4 sheets. https://doi.org/10.14509/31015