Sample EF9301
NavDat sample number 40700 · BASALTIC-ANDESITE
Sample
| Sample ID | EF9301 |
|---|---|
| Rock name | BASALTIC-ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | substantial chloritized minerals in a very fine groundmass with large hbl and small cpx phenos |
Location
| Latitude | 45.8667 |
|---|---|
| Longitude | -113.783 |
| Location | Meadow Creek of East Fork Bitterroot River |
| State / province | Montana |
| Volcanic field | dike |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 51.8 | 51 | 52.6 |
Analyses
Minerial
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 61.37 | WT% | XRF | |
| AL2O3 | 15.8 | WT% | XRF | |
| TIO2 | 0.57 | WT% | XRF | |
| FEOT | 5.01 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| CAO | 6.72 | WT% | XRF | |
| MGO | 4.41 | WT% | XRF | |
| K2O | 2.26 | WT% | XRF | |
| NA2O | 3.4 | WT% | XRF | |
| P2O5 | 0.12 | WT% | XRF | |
| TOTAL | 99.71 | WT% | XRF | |
| NI | 144 | PPM | XRF | |
| CR | 403 | PPM | XRF | |
| V | 89 | PPM | XRF | |
| BA | 799 | PPM | XRF | |
| RB | 58 | PPM | XRF | |
| SR | 519 | PPM | XRF | |
| ZR | 125 | PPM | XRF | |
| Y | 13 | PPM | XRF | |
| NB | 5 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 15 | PPM | XRF | |
| ZN | 63 | PPM | XRF | |
| PB | 17 | PPM | XRF |