Sample 60
NavDat sample number 18412 · ANDESITE
Sample
| Sample ID | 60 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | phenos of plag, augite, and hypersthene; recrystallized cryptofelsic and relict pilotaxitic groundmass |
Location
| Latitude | 44.3129 |
|---|---|
| Longitude | -114.837 |
| Location | above East Basin Creek |
| State / province | Idaho |
| Volcanic field | Challis Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 46 | 43 | 49 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.36 | WT% | AAS | |
| TIO2 | 1.03 | WT% | AAS | |
| AL2O3 | 16.36 | WT% | AAS | |
| FE2O3 | 3.03 | WT% | AAS | |
| FEO | 3.15 | WT% | TIT | |
| MNO | 0.12 | WT% | AAS | |
| MGO | 4.09 | WT% | AAS | |
| CAO | 7.08 | WT% | AAS | |
| NA2O | 3.14 | WT% | AAS | |
| K2O | 2.81 | WT% | AAS | |
| P2O5 | 0.37 | WT% | AAS | |
| H2O_PLUS | 0.92 | WT% | UNKNOWN | |
| H2O_MINUS | 0.98 | WT% | UNKNOWN | |
| TOTAL | 100.44 | WT% | AAS | |
| RB | 80 | PPM | XRF | |
| SR | 729 | PPM | XRF | |
| BA | 1480 | PPM | AAS | |
| NI | 56 | PPM | AAS | |
| CR | 184 | PPM | AAS | |
| ZR | 216 | PPM | XRF | |
| ZN | 86 | PPM | AAS | |
| CU | 11 | PPM | AAS |