Sample 111
NavDat sample number 18411 · ANDESITE
Sample
| Sample ID | 111 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | altered; phenos of plag and pyroxene; recrystallized cryptofelsic groundmass with relict hyalopilitic texture |
Location
| Latitude | 44.2844 |
|---|---|
| Longitude | -114.823 |
| Location | above Coal 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 | 62.39 | WT% | AAS | |
| TIO2 | 0.41 | WT% | AAS | |
| AL2O3 | 15.52 | WT% | AAS | |
| FE2O3 | 0.65 | WT% | AAS | |
| FEO | 1.68 | WT% | TIT | |
| MNO | 0.15 | WT% | AAS | |
| MGO | 1.08 | WT% | AAS | |
| CAO | 6.66 | WT% | AAS | |
| NA2O | 4.03 | WT% | AAS | |
| K2O | 3.26 | WT% | AAS | |
| P2O5 | 0.26 | WT% | AAS | |
| H2O_PLUS | 0.37 | WT% | UNKNOWN | |
| H2O_MINUS | 0.95 | WT% | UNKNOWN | |
| TOTAL | 97.41 | WT% | AAS | |
| RB | 110 | PPM | XRF | |
| SR | 549 | PPM | XRF | |
| BA | 1576 | PPM | AAS | |
| NI | 27 | PPM | AAS | |
| CR | 231 | PPM | AAS | |
| ZR | 234 | PPM | XRF | |
| ZN | 103 | PPM | AAS | |
| CU | 17 | PPM | AAS |