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SAMPLE INFO : Y-121
Sample ID:Y-121
Station ID:Y-121
Latitude:58.6113
Longitude:-154.0245
Datum:NAD83
Date Sampled:2000-00-00
Sample Type 1:pyroclastic density current
 Text Description:
Kaguyak Ignimbrite: primary brown-grey, sandy, unstratified ignimbrite (pale grey when dry); Ignimbrite is very pumice-rich (abundant 1-3 cm pumice) and lithic-rich (abundant 0.5 to 1-cm lava clasts); Overlain by 1-1.5 m bouldery river alluvium. Exposed thickness ~2.5 m. no PCZ or LCZ. See text for MP and ML. Pumice clasts: white dacite most common, with minor scoria; tend to have few pxn-clot blebs; all analyze as dacites (64-65% SiO2). Lithic clasts: all clasts are andesite-dacite lavas

References:
Kaguyak dome field and its Holocene caldera, Alaska Peninsula

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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