Sample 96
NavDat sample number 18414 · ANDESITE
Sample
| Sample ID | 96 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | phenos of plag, augite, and hypersthene; slightly altered hyalopilitic groundmass |
Location
| Latitude | 44.3087 |
|---|---|
| Longitude | -114.853 |
| Location | above Short 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 | 57.41 | WT% | AAS | |
| TIO2 | 0.8 | WT% | AAS | |
| AL2O3 | 12.35 | WT% | AAS | |
| FE2O3 | 2.49 | WT% | AAS | |
| FEO | 4.56 | WT% | TIT | |
| MNO | 0.14 | WT% | AAS | |
| MGO | 3.94 | WT% | AAS | |
| CAO | 8.31 | WT% | AAS | |
| NA2O | 2.81 | WT% | AAS | |
| K2O | 3.08 | WT% | AAS | |
| P2O5 | 0.42 | WT% | AAS | |
| H2O_PLUS | 1.34 | WT% | UNKNOWN | |
| H2O_MINUS | 0.66 | WT% | UNKNOWN | |
| TOTAL | 98.31 | WT% | AAS | |
| RB | 69 | PPM | XRF | |
| SR | 772 | PPM | XRF | |
| BA | 1676 | PPM | AAS | |
| NI | 13 | PPM | AAS | |
| CR | 144 | PPM | AAS | |
| ZR | 228 | PPM | XRF | |
| ZN | 79 | PPM | AAS | |
| CU | 17 | PPM | AAS |