GEOROC Sample Information
Location
Latitude 64.02 | Longitude -19.65
ICELAND / ICELAND / HEKLA
OCEAN ISLAND
Reference
CONDOMINES M.,FOURCADE S.,SIGMARSSON O.
A DETAILED THORIUM, STRONTIUM AND OXYGEN ISOTOPE STUDY OF HEKLA: DIFFERENTIATION PROCESSES IN AN ICELANDIC VOLCANO
CONTRIB. MINERAL. PETROL. 112 [1992] 20-34
Sample Name: H1845-L
Sample Information
BASALTIC-ANDESITE / LAVA FLOW / FRESH
OUTCROP
Sample Age Information
HOLOCENE
1846 eruption
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| SR87_SR86 | 0.70313 ± 0.00002 |
| D18O | 4.89 ± 0.06 VS SMOW |
| AL2O3 | 14.8 WT% |
| CAO | 6.73 WT% |
| FEOT | 12 WT% |
| H2O | 0.16 WT% |
| K2O | 1.27 WT% |
| MGO | 2.9 WT% |
| MNO | 0.29 WT% |
| NA2O | 4.08 WT% |
| SIO2 | 54.8 WT% |
| TIO2 | 1.89 WT% |
| YB | 81.2 PPM |
| BA | 341 PPM |
| CO | 23 PPM |
| NB | 67.2 PPM |
| NI | 4 PPM |
| RB | 26 PPM |
| SC | 22 PPM |
| SR | 380 PPM |
| TH | 4.55 PPM |
| U | 1.41 PPM |
| ZR | 508 PPM |
| TH230_TH232_ACT | 1.04 ± 0.01 |
Reference
HEMOND C.,CONDOMINES M.,OSKARSSON N.,FOURCADE S.,SIGMARSSON O.
ORIGIN OF SILICIC MAGMA IN ICELAND REVEALED BY THORIUM ISOTOPES
GEOLOGY 19 [1991] 621-624
Sample Name: H1845-L
Sample Information
BASALTIC-ANDESITE / TEPHRA
OUTCROP
Sample Age Information
HOLOCENE
1845 eruption
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| SR87_SR86 | 0.70313 ± 0.00002 |
| D18O | 4.89 VS SMOW |
| TH | 4.55 PPM |
| U | 1.41 PPM |
| TH230_TH232_ACT | 1.04 ± 0.02 |
| U238_TH232_ACT | 0.94 |
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: H1845-L
Sample Information
BASALTIC-ANDESITE / LAVA / FRESH
OUTCROP
Sample Age Information
HOLOCENE
1845 eruption
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 14.66 WT% |
| CAO | 6.53 WT% |
| FE2O3 | 1.23 WT% |
| FEO | 10.54 WT% |
| H2O | 0.32 WT% |
| K2O | 1.31 WT% |
| MGO | 2.97 WT% |
| MNO | 0.25 WT% |
| NA2O | 4.2 WT% |
| P2O5 | 0.94 WT% |
| SIO2 | 54.8 WT% |
| TIO2 | 1.88 WT% |
| CE | 121 PPM |
| EU | 4.71 PPM |
| GD | 15.5 PPM |
| LA | 50 PPM |
| LU | 0.94 PPM |
| ND | 80 PPM |
| SM | 12.2 PPM |
| TB | 1.92 PPM |
| TM | 0.87 PPM |
| YB | 6.7 PPM |
| B | 1.7 PPM |
| BA | 377 PPM |
| CD | 0.15 PPM |
| CL | 420 PPM |
| CO | 18 PPM |
| CR | 0 PPM |
| CS | 0.4 PPM |
| CU | 10 PPM |
| F | 1120 PPM |
| HF | 11.2 PPM |
| MO | 2.9 PPM |
| NB | 64 PPM |
| NI | 1 PPM |
| PB | 3.4 PPM |
| RB | 32 PPM |
| SC | 20.6 PPM |
| TA | 4.26 PPM |
| TH | 5 PPM |
| U | 1.4 PPM |
| ZN | 200 PPM |
| ZR | 320 PPM |