GEOROC Sample Information
Location
Latitude 37.8 | Longitude -25.5
AZORES / SAO MIGUEL / AGUA DE PAO
FOGO 1563
OCEAN ISLAND
Reference
STOREY M.
TRACHYTIC PYROCLASTICS FROM AGUA DE PAU VOLCANO, SAO MIGUEL, AZORES: EVOLUTION OF A MAGMA BODY OVER 4000 YEARS
CONTRIB. MINERAL. PETROL. 78 [1982] 423-432
Sample Name: AZ1149
Sample Information
TRACHYTE / GLASSY TO CRYPTOCRYSTALLINE TEXTURE / PUMICE
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 16.96 WT% |
| CAO | 0.85 WT% |
| FE2O3 | 1.39 WT% |
| FEO | 1.89 WT% |
| K2O | 5.46 WT% |
| MGO | 0.27 WT% |
| MNO | 0.22 WT% |
| NA2O | 7.61 WT% |
| P2O5 | 0.07 WT% |
| SIO2 | 64.83 WT% |
| TIO2 | 0.45 WT% |
| CE | 362.3 PPM |
| EU | 0.62 PPM |
| LA | 197.1 PPM |
| LU | 1.13 PPM |
| ND | 129.7 PPM |
| SM | 27.3 PPM |
| TB | 2.7 PPM |
| YB | 8.1 PPM |
| BA | 410 PPM |
| NB | 442 PPM |
| RB | 348 PPM |
| SR | 14 PPM |
| TH | 48 PPM |
| Y | 100 PPM |
| ZR | 1906 PPM |