Sample: Y-8

Sample ID:	Y-8 ^[1]
Station ID:	Y-8
AT Num:
Volcano:	Kaguyak
Possible source:
Eruption:
Collector:	Fierstein, J. E.
Date sampled:	2000-00-00
Sample type 1:	Other
Color:
Final unit:
Text Description:	orange fragmental deposit with patchy distribution around caldera rim; mantles Big Breccia deposit and the swales cut in the breccia; includes thoroughly hydrothermally altered blocks and agglutinated blocks of all sizes to decimeters-scale. Also includes 10-20% fresh grey lavas; matrix is orange due to comminuted hydrothermally altered material. Matrix is sandy with some clay component. Some agglutinated blocks are stratified. No pumice seen. Orange sediments atop ignimbrite near Y-3 include abundant orange-altered ferrocreted lake sediment clasts. Implies the orange hydrothermally altered deposit postdates the ignimbrite, too. Exposed thickness 5 to 8 m. MP typically decimeters; ML = 2+m.
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 .

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