GEOROC Sample Information
Location
Latitude -0.538 | Longitude -77.626
ANDEAN ARC / NORTHERN ANDEAN VOLCANIC ZONE / ECUADOR / SUMACO
CONVERGENT MARGIN
Reference
THORPE R. S.,FRANCIS P. W.,O^CALLAGHAN L. J.
RELATIVE ROLES OF SOURCE COMPOSITION, FRACTIONAL CRYSTALLIZATION AND CRUSTAL CONTAMINATION IN THE PETROGENESIS OF ANDEAN VOLCANIC ROCKS
PHIL. TRANS. ROY. SOC. LONDON A310 [1984] 675-692
Sample Name: AW587
Sample Information
NOT GIVEN / ALKALINE ROCK
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| SR87_SR86 | 0.704 |
| AL2O3 | 18.86 WT% |
| CAO | 2.38 WT% |
| FE2O3T | 1.89 WT% |
| K2O | 5.95 WT% |
| MGO | 0.15 WT% |
| NA2O | 7.7 WT% |
| SIO2 | 62.61 WT% |
| TIO2 | 0.24 WT% |
| CE | 285.1 PPM |
| LA | 180 PPM |
| ND | 79.2 PPM |
| SM | 9.6 PPM |
| TB | 0.9 PPM |
| YB | 3.9 PPM |
| BA | 2500 PPM |
| HF | 8.7 PPM |
| NB | 65 PPM |
| NI | 4 PPM |
| RB | 145 PPM |
| SR | 1189 PPM |
| TA | 3.1 PPM |
| TH | 40.5 PPM |
| Y | 37 PPM |
| ZR | 494 PPM |