GEOROC Sample Information
Location
Latitude 64.02 | Longitude -19.65
ICELAND / ICELAND / HEKLA / H3 TEPHRA
OFAERUGIL, 8.5 KM NW OF HEKLA
OCEAN ISLAND
Reference
SVERRISDOTTIR G.
HYBRID MAGMA GENERATION PRECEDING PLINIAN SILICIC ERUPTIONS AT HEKLA, ICELAND: EVIDENCE FROM MINERALOGY AND CHEMISTRY OF TWO ZONED DEPOSITS
GEOL. MAG. 144 [2007] 643-659
Sample Name: H3-3
Sample Information
PUMICE / PUMICE / FRESH
OUTCROP
Sample Age Information
2,950 years
to 3,040 years
HOLOCENE
Chemistry (and, if given, analytical ages)
Analyzed: VOLCANIC GLASS
AL2O3 | 13.7 ± 0.32 WT% |
CAO | 2.15 ± 0.14 WT% |
FEOT | 2.93 ± 0.21 WT% |
K2O | 2.5 ± 0.05 WT% |
MGO | 0.14 ± 0.08 WT% |
MNO | 0.1 ± 0.08 WT% |
NA2O | 5.18 ± 0.29 WT% |
P2O5 | 0 ± 0 WT% |
SIO2 | 71.8 ± 0.58 WT% |
TIO2 | 0.23 ± 0 WT% |