Sample 192
NavDat sample number 18430 · BASALTIC-ANDESITE
Sample
| Sample ID | 192 |
|---|---|
| Rock name | BASALTIC-ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | equigranular and slightly altered; rare microphenos of plag; hyalopilitic intersertal groundmass |
Location
| Latitude | 44.3699 |
|---|---|
| Longitude | -114.798 |
| Location | along Deadwood 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 | 52.83 | WT% | AAS | |
| TIO2 | 1.82 | WT% | AAS | |
| AL2O3 | 15.36 | WT% | AAS | |
| FE2O3 | 6.46 | WT% | AAS | |
| FEO | 2.92 | WT% | TIT | |
| MNO | 0.11 | WT% | AAS | |
| MGO | 3.25 | WT% | AAS | |
| CAO | 7.67 | WT% | AAS | |
| NA2O | 3.11 | WT% | AAS | |
| K2O | 1.99 | WT% | AAS | |
| P2O5 | 0.62 | WT% | AAS | |
| H2O_PLUS | 2.89 | WT% | UNKNOWN | |
| H2O_MINUS | 1.46 | WT% | UNKNOWN | |
| TOTAL | 100.49 | WT% | AAS | |
| RB | 54 | PPM | XRF | |
| SR | 494 | PPM | XRF | |
| BA | 765 | PPM | AAS | |
| NI | 8 | PPM | AAS | |
| CR | 21 | PPM | AAS | |
| ZR | 259 | PPM | XRF | |
| ZN | 103 | PPM | AAS | |
| CU | 6 | PPM | AAS |