Sample: 54


Sample ID: 54 [1]
Station ID: 54
AT Num:
Volcano: Yantarni
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled:
Sample type 1: Lava
Color:
Final unit:
Text Description: Texture: Porphyry; groundmass <0.1 mm, massive, plagioclase >> hornblende > opaque = apatite; quartz as anhedral mosaics (xenolithics); plagioclase fractured and recrystallized? Alteration: Rare calcite and chlorite as replacement of mafics in lithics
Sample Location:

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.
full-text PDF 2.2 MB
plate 1 PDF 429 KB