GEOROC Sample Information
Location
Latitude 37 | Longitude 138
HONSHU ARC / CENTRAL HONSHU ARC / HONSHU / MYOKO
MYOKO VOLCANO GROUP
CONVERGENT MARGIN
Reference
SAKUYAMA M.
PETROLOGICAL STUDY OF THE MYOKO AND KUROHIME VOLCANOES, JAPAN: CRYSTALLIZATION SEQUENCE AND EVIDENCE FOR MAGMA MIXING
J. PETROL. 22 [1981] 553-583
Sample Name: MK618-1
Sample Information
ANDESITE / PORPHYRITIC TEXTURE
OUTCROP
Sample Age Information
QUATERNARY
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 18.74 ± 0.8 WT% |
| CAO | 7.47 ± 0.2 WT% |
| FE2O3T | 7.31 ± 0.5 WT% |
| K2O | 1.57 ± 0.08 WT% |
| MGO | 3.11 ± 0.4 WT% |
| MNO | 0.14 ± 0.02 WT% |
| NA2O | 2.3 ± 0.18 WT% |
| P2O5 | 0.25 ± 0.06 WT% |
| SIO2 | 59.55 ± 1.4 WT% |
| TIO2 | 0.59 ± 0.05 WT% |