GEOROC Sample Information
Location
Latitude 45.1 | Longitude 141.27
KURILE ARC / KURILE ARC / RISHIRI / RISHIRI / ARARAGIYAMA LAVA
CONVERGENT MARGIN
Reference
NAKAMURA E.,YOKOYAMA TETSUYA,KURITANI T.
GENERATION OF REAR-ARC MAGMAS INDUCED BY INFLUX OF SLAB-DERIVED SUPERCRITICAL LIQUIDS: IMPLICATIONS FROM ALKALI BASALT LAVAS FROM RISHIRI VOLCANO, KURILE ARC
J. PETROL. 49 [2008] 1319-1342
Sample Name: SN-2
Sample Information
ALKALI BASALT / APHYRIC TEXTURE
OUTCROP
Sample Age Information
4,200,000 years
to 8,000,000 years
NEOGENE
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| ND143_ND144 | 0.512929 ± 0.000003 |
| PB206_PB204 | 18.366 |
| PB207_PB204 | 15.518 |
| PB208_PB204 | 38.249 |
| SR87_SR86 | 0.703169 ± 0.000009 |
| AL2O3 | 17.06 WT% |
| CAO | 9.46 WT% |
| FE2O3T | 10.69 WT% |
| K2O | 0.76 WT% |
| LOI | 0.42 WT% |
| MGO | 8.09 WT% |
| MNO | 0.18 WT% |
| NA2O | 3.21 WT% |
| P2O5 | 0.25 WT% |
| SIO2 | 49.17 WT% |
| TIO2 | 1.07 WT% |
| CE | 27 PPM |
| DY | 4.33 PPM |
| ER | 2.64 PPM |
| EU | 1.33 PPM |
| GD | 4.08 PPM |
| HO | 0.95 PPM |
| LA | 11.6 PPM |
| LU | 0.42 PPM |
| ND | 15.6 PPM |
| PR | 3.47 PPM |
| SM | 3.65 PPM |
| TB | 0.7 PPM |
| TM | 0.41 PPM |
| YB | 2.78 PPM |
| B | 5.55 PPM |
| BA | 174 PPM |
| BE | 0.9 PPM |
| CR | 283 PPM |
| CS | 0.87 PPM |
| HF | 2.31 PPM |
| LI | 5.88 PPM |
| NB | 4.09 PPM |
| NI | 142 PPM |
| PB | 1.83 PPM |
| RB | 18.2 PPM |
| SR | 392 PPM |
| TA | 0.28 PPM |
| TH | 1.67 PPM |
| U | 0.49 PPM |
| Y | 27.9 PPM |
| ZR | 104 PPM |