Sample 79H2
NavDat sample number 10390 · BASALT
Sample
| Sample ID | 79H2 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | fine-grained, holocrystalline, with patches of Ti-rich ophitic augite; microphenocrysts of plagioclase and olivine are mostly resorbed; K-Ar age appears to be too old |
Location
| Latitude | 43.1375 |
|---|---|
| Longitude | -116.271 |
| State / province | Idaho |
| Volcanic field | Big Foot Butte Basalt |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 1.57 | 0.4 | 0.99 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 47.8 | WT% | UNKNOWN | |
| TIO2 | 0.9 | WT% | UNKNOWN | |
| AL2O3 | 13.6 | WT% | UNKNOWN | |
| FE2O3 | 2.4 | WT% | UNKNOWN | |
| FEO | 12.5 | WT% | UNKNOWN | |
| MNO | 0.23 | WT% | UNKNOWN | |
| MGO | 7.2 | WT% | UNKNOWN | |
| CAO | 9.7 | WT% | UNKNOWN | |
| NA2O | 2.6 | WT% | UNKNOWN | |
| K2O | 0.53 | WT% | UNKNOWN | |
| P2O5 | 0.55 | WT% | UNKNOWN | |
| H2O_PLUS | 0.1 | WT% | UNKNOWN | |
| H2O_MINUS | 0.1 | WT% | UNKNOWN | |
| CO2 | 0.1 | WT% | UNKNOWN | |
| TOTAL | 98.3 | WT% | UNKNOWN | |
| NI | 50 | PPM | UNKNOWN | |
| CR | 120 | PPM | UNKNOWN | |
| RB | 20 | PPM | UNKNOWN | |
| SR | 335 | PPM | UNKNOWN |