Sample: 98JLOK4G

Sample ID:	98JLOK4G ^[1] ^[2] ^[3]
Station ID:	98JLOK4
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 ash flow/ignimbrite. Sample collected from the base of '4G' sequence in lower part of the ignimbrite. No lithics and aphyric.
Sample Location:

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] 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

Alaska Volcano Observatory

Sample: 98JLOK4G

References Cited

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

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

[3] Geologic map of Okmok Volcano, 2023