Sample 95ID-88
NavDat sample number 38671 · TRACHYDACITE
Sample
| Sample ID | 95ID-88 |
|---|---|
| Rock name | TRACHYDACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, cpx (glomerocrysts), opx, bio (altered relicts), amph (alterd relicts), opaques; cryptocrystalline g.m. with feldspar and quartz |
Location
| Latitude | 44.79 |
|---|---|
| Longitude | -114.565 |
| Location | Silver Creek |
| State / province | Idaho |
| Volcanic field | Tcd, Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 49 | 48 | 50 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.83 | WT% | XRF | |
| TIO2 | 0.61 | WT% | XRF | |
| AL2O3 | 15.57 | WT% | XRF | |
| FEOT | 3.96 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| MGO | 2.16 | WT% | XRF | |
| CAO | 4 | WT% | XRF | |
| NA2O | 3.61 | WT% | XRF | |
| K2O | 3.96 | WT% | XRF | |
| P2O5 | 0.23 | WT% | XRF | |
| LOI | 1.12 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 14 | PPM | XRF | |
| CR | 44 | PPM | XRF | |
| SC | 6 | PPM | XRF | |
| V | 90 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| CU | 9 | PPM | XRF | |
| ZN | 64 | PPM | XRF | |
| ZR | 190 | PPM | XRF | |
| NB | 18.8 | PPM | XRF | |
| BA | 1637 | PPM | XRF | |
| RB | 121 | PPM | XRF | |
| SR | 572 | PPM | XRF | |
| PB | 27 | PPM | XRF | |
| TH | 16 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| LA | 43 | PPM | XRF | |
| CE | 64 | PPM | XRF |