GEOROC Sample Information
Location
Latitude -25.17 | Longitude -68.52
ANDEAN ARC / CENTRAL ANDEAN VOLCANIC ZONE / CHILE / LASTARRIA
STRATOVOLCANO
CONVERGENT MARGIN
Reference
NARANJO J. A.
CHEMISTRY AND PETROLOGICAL EVOLUTION OF THE LASTARRIA VOLCANIC COMPLEX IN THE NORTH CHILEAN ANDES
GEOL. MAG. 129 [1992] 723-740
Sample Name: 2
Sample Information
NOT GIVEN
OUTCROP
Sample Age Information
HOLOCENE
Chemistry (and, if given, analytical ages)
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE
| AN | 45.2 MOL% |
| AL2O3 | 26.65 WT% |
| CAO | 9.19 WT% |
| FEOT | 0.39 WT% |
| K2O | 0.6 WT% |
| NA2O | 5.77 WT% |
| SIO2 | 56.74 WT% |
| SRO | 0.16 WT% |