Sample: 39


Sample ID: 39 [1]
Station ID: 39
AT Num:
Volcano: Yantarni
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled:
Sample type 1: Lava
Color:
Final unit:
Text Description: Sample of dome consisting of pilotaxitic, hornblende-bearing andesite containing rare quartz phenocrysts(?). (Texture: Porphyry; groundmass <0.2 mm, vague foliation, plagioclase>clinopyroxene>hornblende=orthopyroxene=opaque; thin oxide rims on hornblende, clinopyroxene rims on quartz. Alteration: None)
Sample Location:
Marker
Legend
Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

References Cited

[1] Petrography, chemistry, and geologic history of Yantarni volcano, Aleutian volcanic arc, Alaska, 1987

Riehle, J. R., Yount, M. E., and Miller, T. P., 1987, Petrography, chemistry, and geologic history of Yantarni volcano, Aleutian volcanic arc, Alaska: U.S. Geological Survey Bulletin 1761, 27 p., 1 sheet, scale 1:63,360.
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