Sample 95ID-12
NavDat sample number 38607 · TRACHYANDESITE
Sample
| Sample ID | 95ID-12 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of cpx and opx; vesicles filled with calcite and quartz |
Location
| Latitude | 44.525 |
|---|---|
| Longitude | -114.108 |
| Location | Leaton Gulch |
| State / province | Idaho |
| Volcanic field | Tl of main effusive phase, 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 | 55.53 | WT% | XRF | |
| TIO2 | 1.08 | WT% | XRF | |
| AL2O3 | 17.06 | WT% | XRF | |
| FEOT | 8.1 | WT% | XRF | |
| MNO | 0.17 | WT% | XRF | |
| MGO | 3.42 | WT% | XRF | |
| CAO | 7.12 | WT% | XRF | |
| NA2O | 3.59 | WT% | XRF | |
| K2O | 3.53 | WT% | XRF | |
| P2O5 | 0.39 | WT% | XRF | |
| LOI | 2.4 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 13 | PPM | XRF | |
| CR | 49 | PPM | XRF | |
| SC | 20 | PPM | XRF | |
| V | 190 | PPM | XRF | |
| GA | 24 | PPM | XRF | |
| CU | 30 | PPM | XRF | |
| ZN | 79 | PPM | XRF | |
| ZR | 250 | PPM | XRF | |
| NB | 20 | PPM | XRF | |
| BA | 998 | PPM | XRF | |
| RB | 82 | PPM | XRF | |
| SR | 556 | PPM | XRF | |
| PB | 13 | PPM | XRF | |
| TH | 10 | PPM | XRF | |
| Y | 33 | PPM | XRF | |
| LA | 35 | PPM | XRF | |
| CE | 103 | PPM | XRF |