Sample 159
NavDat sample number 18431 · ANDESITE
Sample
| Sample ID | 159 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | equigranular; altered |
Location
| Latitude | 44.3814 |
|---|---|
| Longitude | -114.922 |
| Location | south of Hindman Lake |
| 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 | 58.01 | WT% | AAS | |
| TIO2 | 1.54 | WT% | AAS | |
| AL2O3 | 15.81 | WT% | AAS | |
| FE2O3 | 2.93 | WT% | AAS | |
| FEO | 4.69 | WT% | TIT | |
| MNO | 0.11 | WT% | AAS | |
| MGO | 0.344 | WT% | AAS | |
| CAO | 5.59 | WT% | AAS | |
| NA2O | 3.85 | WT% | AAS | |
| K2O | 2.4 | WT% | AAS | |
| P2O5 | 0.43 | WT% | AAS | |
| H2O_PLUS | 1.81 | WT% | UNKNOWN | |
| H2O_MINUS | 0.5 | WT% | UNKNOWN | |
| TOTAL | 101.11 | WT% | AAS | |
| RB | 67 | PPM | XRF | |
| SR | 560 | PPM | XRF | |
| BA | 1173 | PPM | AAS | |
| NI | 7 | PPM | AAS | |
| CR | 27 | PPM | AAS | |
| ZR | 271 | PPM | XRF | |
| ZN | 101 | PPM | AAS | |
| CU | 9 | PPM | AAS |