Home
Volcanoes
Webcams
News
Explore Data
Images
Get Involved
About AVO

Sample: 85CNS01

Sample ID: 85CNS01 [1] [2]
Station ID: 85CNS01
AT Num:
Volcano: Spurr
Possible source:
Eruption:
Collector: Nye, C. J.
Date sampled: 1985-01-01
Sample type 1: Lava
Color:
Final unit:
Text Description: Sample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-01 of Nye and Turner (1990). Finely vesicular plag, cpx. Plag ~0.5 mm equant - perhaps like Pakushin (snowflake). Flow contains these bread-crusted blocks and radially fractured blocks. Blocks to 2 meters. Flow also contains older reddishly-altered rounded to angular blocks. These older blocks NOT breadcrusted or radially fractured. B&A flow appears to be channel fill in older previously altered debris avalanche material.
Sample Location:
Marker
Legend
✕
Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

300 km
200 mi
Leaflet U.S. Department of the Interior | U.S. Geological Survey | Policies

References Cited

[1] Petrology, geochemistry, and age of the Spurr volcanic complex, eastern Aleutian arc, 1990

Nye, C. J., and Turner, D. L., 1990, Petrology, geochemistry, and age of the Spurr volcanic complex, eastern Aleutian arc: Bulletin of Volcanology, v. 52, n. 3, p. 205-226.

[2] Geochemistry of some Quaternary lavas from the Aleutian Arc and Mt. Wrangell, 2018

Nye, C.J., Beget, J.E., Layer, P.W., Mangan, M.T., McConnell, V.S., McGimsey, R.G., Miller, T.P., Moore, R.B., and Stelling, P.L., 2018, Geochemistry of some quaternary lavas from the Aleutian Arc and Mt. Wrangell: Alaska Division of Geological & Geophysical Surveys Raw Data File 2018-1, 29 p. http://doi.org/10.14509/29843