GEOROC Sample Information
Location
Latitude -0.357 | Longitude -78.619
ANDEAN ARC / NORTHERN ANDEAN VOLCANIC ZONE / ECUADOR / ATACAZO-NINAHUILCA
ATACAZO
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: ARCOC
Sample Information
DACITE
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 16.88 WT% |
| CAO | 5.76 WT% |
| FEOT | 5.7 WT% |
| K2O | 0.98 WT% |
| MGO | 2.39 WT% |
| MNO | 0.09 WT% |
| NA2O | 4.22 WT% |
| P2O5 | 0.08 WT% |
| SIO2 | 63.28 WT% |
| TIO2 | 0.63 WT% |
| CE | 9.1 PPM |
| EU | 0.74 PPM |
| LA | 4.6 PPM |
| LU | 0.06 PPM |
| ND | 3.7 PPM |
| SM | 1.4 PPM |
| TB | 0.21 PPM |
| YB | 0.52 PPM |
| BA | 493 PPM |
| CS | 0.69 PPM |
| HF | 2.25 PPM |
| NB | 3 PPM |
| NI | 8 PPM |
| RB | 18 PPM |
| SC | 11 PPM |
| SC | 9.3 PPM |
| SR | 428 PPM |
| TH | 1.1 PPM |
| U | 0.53 PPM |
| V | 136 PPM |
| Y | 7 PPM |
| ZR | 90 PPM |