Sample s_SS-18
NavDat sample number 40988 · BASALT
Sample
| Sample ID | s_SS-18 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | LAVA |
Location
| Latitude | 44.1 |
|---|---|
| Longitude | -121.75 |
| Location | CASCADES / HIGH CASCADES / NORTHWESTERN CASCADES / SOUTH SISTER / PACIFIC OCEAN |
| State / province | OREGON |
| Location comment | SUMMIT CONE |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0 | 0 | 0.01 | HOLOCENE |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 50.7 | WT% | EPMA | |
| TIO2 | 1.37 | WT% | EPMA | |
| AL2O3 | 18.95 | WT% | EPMA | |
| FEOT | 9.75 | WT% | EPMA | |
| CAO | 8.16 | WT% | EPMA | |
| MGO | 4.39 | WT% | EPMA | |
| MNO | 0.15 | WT% | EPMA | |
| K2O | 0.44 | WT% | EPMA | |
| NA | 4.01 | WT% | EPMA | |
| LA | 10.09 | PPM | INAA | |
| CE | 25.68 | PPM | INAA | |
| SM | 4.01 | PPM | INAA | |
| EU | 1.45 | PPM | INAA | |
| TB | 0.43 | PPM | INAA | |
| DY | 2.94 | PPM | INAA | |
| YB | 2.1 | PPM | INAA | |
| LU | 0.27 | PPM | INAA | |
| SC | 28.46 | PPM | INAA | |
| V | 232.92 | PPM | INAA | |
| CR | 71.08 | PPM | INAA | |
| CO | 31.6 | PPM | INAA | |
| RB | 20.16 | PPM | INAA | |
| CS | 0.57 | PPM | INAA | |
| HF | 3.28 | PPM | INAA | |
| TA | 0.28 | PPM | INAA | |
| TH | 1.36 | PPM | INAA | |
| U | 0.81 | PPM | INAA |
References
- Brophy, J G; Dreher, S T (2000) The origin of composition gaps at South Sister Volcano, central Oregon; implications for fractional crystallization processes beneath active calc-alkaline volcanoes. Journal of Volcanology and Geothermal Research. 102; 3-4, Pages 287-307. 2000. doi:10.1016/S0377-0273(00)00192-X