Sample: 05JRSCH023


Sample ID: 05JRSCH023 [1]
Station ID: 05JRSCH023
AT Num:
Volcano: Chiginagak
Possible source:
Eruption:
Collector: Schaefer, J. R. G.
Date sampled: 2005-08-23
Sample type 1: Lava
Color:
Final unit: Pnba
Text Description: Sample from dense, less devitrified 1.5m block from monolithic block and ash flow deposit. Willie took sample of more devitrified rock for possible Ar-Ar dating. Prismatically jointed blocks, xtl-rich, devitrified andesite in ashy, to sand-size matrix. Abundant visible dark opx and plag in clasts. Chose sample 05WESCH008 for Ar/Ar dating.
Sample Location:

References Cited

[1] Geologic map of Mount Chiginagak volcano, Alaska, 2017

Schaefer, J.R., Scott, W.E., and Layer, P.W., 2017, Geologic map of Mount Chiginagak volcano, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2017-10, 32 p., 1 sheet, scale 1:25,000. http://doi.org/10.14509/29769