GEOROC Sample Information

Location
Latitude 54.75 | Longitude -163.97
ALEUTIAN ARC / SECOND ALEUTIAN ARC / UNIMAK / SHISHALDIN
CONVERGENT MARGIN

Reference

SCHILLING J.- G.,DEVINE J. D.,NYE C. J.,GARDNER J. E.,BEGET J. E.,GEORGE R. M. M.

GEOLOGY AND PETROLOGY OF EJECTA FROM THE 1999 ERUPTION OF SHISHALDIN VOLCANO, ALASKA

BULL. VOLCANOL. 64 [2002] 548-561

Sample Name: 99SCN-16A

Sample Information

BASALT / TEPHRA
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PYROXENE

AL2O32.31 WT%
CAO17.57 WT%
CR2O30.04 WT%
FEOT12.36 WT%
MGO15.11 WT%
MNO0.57 WT%
NA2O0.39 WT%
SIO250.31 WT%
TIO21.25 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PYROXENE

AL2O32.22 WT%
CAO17.74 WT%
CR2O30.05 WT%
FEOT12.3 WT%
MGO14.89 WT%
MNO0.47 WT%
NA2O0.33 WT%
SIO250.23 WT%
TIO21.29 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PYROXENE

AL2O31.62 WT%
CAO16.66 WT%
CR2O30.03 WT%
FEOT12.23 WT%
K2O0.31 WT%
MGO15.87 WT%
MNO0.4 WT%
SIO251.4 WT%
TIO20.75 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) MAGNETITE

AL2O35.4 WT%
CR2O30.08 WT%
FEOT72.41 WT%
MGO4.84 WT%
MNO0.31 WT%
NIO0.09 WT%
TIO213.49 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) MAGNETITE

AL2O35.21 WT%
CR2O30.05 WT%
FEOT72.43 WT%
MGO5.02 WT%
MNO0.35 WT%
NIO0 WT%
TIO213.34 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) MAGNETITE

AL2O35.32 WT%
CR2O30.11 WT%
FEOT72.94 WT%
MGO5.02 WT%
MNO0.55 WT%
NIO0 WT%
TIO213.33 WT%