Sample 95ID-52
NavDat sample number 38646 · TRACHYANDESITE
Sample
| Sample ID | 95ID-52 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, pyroxene, bio; lots of secondary carbonate in g.m. |
Location
| Latitude | 44.1483 |
|---|---|
| Longitude | -114.35 |
| Location | East Fork Salmon River |
| State / province | Idaho |
| Volcanic field | Tl(?) of main effusive phase, Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 48 | 46 | 50 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.55 | WT% | XRF | |
| TIO2 | 0.78 | WT% | XRF | |
| AL2O3 | 14.63 | WT% | XRF | |
| FEOT | 6.87 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| MGO | 3.87 | WT% | XRF | |
| CAO | 9.68 | WT% | XRF | |
| NA2O | 2.71 | WT% | XRF | |
| K2O | 3.39 | WT% | XRF | |
| P2O5 | 0.38 | WT% | XRF | |
| LOI | 6.43 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 100 | PPM | XRF | |
| CR | 367 | PPM | XRF | |
| SC | 20 | PPM | XRF | |
| V | 143 | PPM | XRF | |
| GA | 17 | PPM | XRF | |
| CU | 39 | PPM | XRF | |
| ZN | 74 | PPM | XRF | |
| ZR | 188 | PPM | XRF | |
| NB | 20.4 | PPM | XRF | |
| BA | 1592 | PPM | XRF | |
| RB | 97 | PPM | XRF | |
| SR | 734 | PPM | XRF | |
| PB | 21 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| Y | 22 | PPM | XRF | |
| LA | 51 | PPM | XRF | |
| CE | 64 | PPM | XRF |