Sample 112
NavDat sample number 18410 · ANDESITE
Sample
| Sample ID | 112 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | slightly altered, holocrystalline; |
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 | 62.61 | WT% | AAS | |
| TIO2 | 0.45 | WT% | AAS | |
| AL2O3 | 13.35 | WT% | AAS | |
| FE2O3 | 0.58 | WT% | AAS | |
| FEO | 4.92 | WT% | TIT | |
| MNO | 0.06 | WT% | AAS | |
| MGO | 2.2 | WT% | AAS | |
| CAO | 5.5 | WT% | AAS | |
| NA2O | 3.66 | WT% | AAS | |
| K2O | 2.41 | WT% | AAS | |
| P2O5 | 0.15 | WT% | AAS | |
| H2O_PLUS | 1.59 | WT% | UNKNOWN | |
| H2O_MINUS | 1.68 | WT% | UNKNOWN | |
| TOTAL | 99.16 | WT% | AAS | |
| RB | 54 | PPM | XRF | |
| SR | 710 | PPM | XRF | |
| BA | 735 | PPM | AAS | |
| NI | 31 | PPM | AAS | |
| CR | 386 | PPM | AAS | |
| ZR | 150 | PPM | XRF | |
| ZN | 88 | PPM | AAS | |
| CU | 29 | PPM | AAS |