GEOROC Sample Information
Location
Latitude -0.538 | Longitude -77.626
ANDEAN ARC / NORTHERN ANDEAN VOLCANIC ZONE / ECUADOR / SUMACO
CONVERGENT MARGIN
Reference
KURZ M. D.,GEIST D. J.,LARSON P. B.,BARRAGAN R.,HALL M.
SUBDUCTION CONTROLS ON THE COMPOSITIONS OF LAVAS FROM THE ECUADORIAN ANDES
EARTH PLANET. SCI. LETT. 154 [1998] 153-166
Sample Name: S20
Sample Information
PHONOLITE / PORPHYRITIC TEXTURE
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 19.43 WT% |
| CAO | 6.01 WT% |
| FEOT | 6.38 WT% |
| K2O | 4.15 WT% |
| MGO | 1.74 WT% |
| MNO | 0.22 WT% |
| NA2O | 6.83 WT% |
| P2O5 | 0.45 WT% |
| SIO2 | 54.03 WT% |
| TIO2 | 0.76 WT% |
| BA | 2780 PPM |
| NB | 54 PPM |
| NI | 6 PPM |
| RB | 112 PPM |
| SC | 9 PPM |
| SR | 2577 PPM |
| V | 151 PPM |
| Y | 34 PPM |
| ZR | 400 PPM |