GEOROC Sample Information
Location
Latitude 37.8 | Longitude -25.5
AZORES / SAO MIGUEL / AGUA DE PAO
FOGO D
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: P444
Sample Information
TRACHYTE / GLASSY TO CRYPTOCRYSTALLINE TEXTURE / PUMICE
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) BIOTITE
| AL2O3 | 12.43 WT% |
| COO | 0.21 WT% |
| FEOT | 19.18 WT% |
| K2O | 8.63 WT% |
| MGO | 11.55 WT% |
| MNO | 0.4 WT% |
| NA2O | 0.92 WT% |
| SIO2 | 38.58 WT% |
| TIO2 | 6.78 WT% |