GEOROC Sample Information

Location
Latitude 37.8 | Longitude -25.5
AZORES / SAO MIGUEL / AGUA DE PAO / FOGO A ERUPTION
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: P427

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) (AL)KALIFELDSPAR

AL2O319.51 WT%
CAO0.95 WT%
FEO0.23 WT%
K2O7.81 WT%
NA2O5.73 WT%
SIO265.59 WT%