Home
Volcanoes
Webcams
News
Explore Data
Images
Get Involved
About AVO

Sample: 02LWOK1-J1

Sample ID: 02LWOK1-J1 [1]
Station ID: 02LWOK1
AT Num:
Volcano: Okmok
Possible source: Okmok
Eruption: Okmok Middle Scoria
Collector: Wong, L. J.
Date sampled:
Sample type 1: Tephra Fall
Color:
Final unit: unknown
Text Description: Juvenile clast-rich layer. The basal J1 layer is the thickest layer and is comprised entirely of inflated fresh scoria that is commonly black. Scoria sags, reverse grading, and bomb horizons exist in J1 at the sites closest to the caldera, 6-8 km from the rim. J1 is 133 cm thick at the type section (Vermont Creek).
Sample Location:

References Cited

[1] Physical volcanology of a sub-plinian and phreatomagmatic eruption at Okmok Volcano, Alaska: implications for explosive mafic volcanism, 2004

Wong, L.J., 2004, Physical volcanology of a sub-plinian and phreatomagmatic eruption at Okmok Volcano, Alaska: implications for explosive mafic volcanism: University of Alaska Fairbanks unpublished M.S. thesis, 117 p.