Sample: Y-98
Sample ID: | Y-98 [1] |
Station ID: | Y-98 |
AT Num: | |
Volcano: | Kaguyak |
Possible source: | |
Eruption: | Kaguyak CFE |
Collector: | Fierstein, J. E. |
Date sampled: | 2000-00-00 |
Sample type 1: | pyroclastic density current |
Color: | |
Final unit: | |
Text Description: | Kaguyak Ignimbrite. light grey sandy ignimbrite; lower half includes a very lithic-rich horizon with large lithics; top of ignimbrite is PCZ; overlain by 20 m stratified pumiceous alluvium; ignimbrite is rich in degassing pipes; top of ignimbrite and the overlying sediments are rusty orange-brown stained and cemented by steam percolation. Exposed thickness 15 m. PCZ 1-2 m. LCZ:yes. See text for MP and ML. Pumice clasts: most are grey dacite; very minor scoria (analyzed black scoria is 63% SiO2). Lithic clasts: all lithics seen in the PCZ are dark grey crystal-rich dacite lava |
Sample Location: |
References Cited
[1] Kaguyak dome field and its Holocene caldera, Alaska Peninsula, 2008
Fierstein, Judy, and Hildreth, Wes, 2008, Kaguyak dome field and its Holocene caldera, Alaska Peninsula: Journal of Volcanology and Geothermal Research, v. 177, n. 2, p. 340-366, doi:10.1016/j.jvolgeores.2008.05.016 .
full-text PDF 3.16 MB