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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