Sample EF9514A
NavDat sample number 40698 · RHYODACITE
Sample
| Sample ID | EF9514A |
|---|---|
| Rock name | RHYODACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | biotite and feldspar phenos in fine matrix; assorted chloritized minerals |
Location
| Latitude | 45.9375 |
|---|---|
| Longitude | -113.736 |
| Location | East Fork Bitterroot River drainage, east of Sula |
| State / province | Montana |
| Volcanic field | dike |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 55.5 | 55 | 56 |
Analyses
Minerial
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.01 | WT% | XRF | |
| AL2O3 | 15.78 | WT% | XRF | |
| TIO2 | 0.344 | WT% | XRF | |
| FEOT | 2.15 | WT% | XRF | |
| MNO | 0.036 | WT% | XRF | |
| CAO | 1.25 | WT% | XRF | |
| MGO | 1.57 | WT% | XRF | |
| K2O | 3.5 | WT% | XRF | |
| NA2O | 5.13 | WT% | XRF | |
| P2O5 | 0.111 | WT% | XRF | |
| TOTAL | 100.881 | WT% | XRF | |
| NI | 25 | PPM | XRF | |
| CR | 41 | PPM | XRF | |
| SC | 1 | PPM | XRF | |
| V | 36 | PPM | XRF | |
| BA | 1085 | PPM | XRF | |
| RB | 105 | PPM | XRF | |
| SR | 425 | PPM | XRF | |
| ZR | 127 | PPM | XRF | |
| Y | 14 | PPM | XRF | |
| NB | 8.9 | PPM | XRF | |
| GA | 22 | PPM | XRF | |
| CU | 4 | PPM | XRF | |
| ZN | 43 | PPM | XRF | |
| PB | 20 | PPM | XRF | |
| TH | 6 | PPM | XRF | |
| LA | 22.04 | PPM | ICPMS | |
| CE | 38.58 | PPM | ICPMS | |
| PR | 4.35 | PPM | ICPMS | |
| ND | 16.53 | PPM | ICPMS | |
| SM | 3.4 | PPM | ICPMS | |
| EU | 0.89 | PPM | ICPMS | |
| GD | 2.69 | PPM | ICPMS | |
| TB | 0.39 | PPM | ICPMS | |
| DY | 2.15 | PPM | ICPMS | |
| HO | 0.41 | PPM | ICPMS | |
| ER | 1.07 | PPM | ICPMS | |
| TM | 0.17 | PPM | ICPMS | |
| YB | 0.95 | PPM | ICPMS | |
| LU | 0.15 | PPM | ICPMS | |
| HF | 3.4 | PPM | ICPMS | |
| TA | 0.51 | PPM | ICPMS | |
| U | 2.13 | PPM | ICPMS | |
| CS | 2.97 | PPM | ICPMS |