Sample: 81Rj046Ad

Sample ID:	81Rj046Ad ^[1]
Station ID:	81Rj046Ad
AT Num:
Volcano:	Edgecumbe
Possible source:	Edgecumbe
Eruption:
Collector:	Riehle, J. R.
Date sampled:	1981-08-23
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	Dark band from light and dark gray banded pumiceous blocks southeast rim of Mount Edgecumbe crater; light band has marginally higher SiO2 and K2O and marginally lower FeOT MgO and CaO. \| 81ARj46A: Mixed (banded) pumice? Occurs in low SE wall of rim, as surface float (although highly concentrated).
Sample Location:

References Cited

[1] Pyroclastic deposits of the Mount Edgecumbe volcanic field, Southeast Alaska: eruptions of a stratified magma chamber, 1992

Riehle, J. R., Champion, D. E., Brew, D. A., and Lanphere, M. A., 1992, Pyroclastic deposits of the Mount Edgecumbe volcanic field, Southeast Alaska: eruptions of a stratified magma chamber: Journal of Volcanology and Geothermal Research, v. 53, n. 1, p. 117-144.

Alaska Volcano Observatory

Sample: 81Rj046Ad

References Cited

[1] Pyroclastic deposits of the Mount Edgecumbe volcanic field, Southeast Alaska: eruptions of a stratified magma chamber, 1992