Sample 132
NavDat sample number 18427 · DACITE
Sample
| Sample ID | 132 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | altered; equigranular; microphenos of plag and hb in recrystallized cryptofelsic groundmass |
Location
| Latitude | 44.3362 |
|---|---|
| Longitude | -114.804 |
| Location | above Tick 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 | 63.49 | WT% | AAS | |
| TIO2 | 0.85 | WT% | AAS | |
| AL2O3 | 15.26 | WT% | AAS | |
| FE2O3 | 2.3 | WT% | AAS | |
| FEO | 2.99 | WT% | TIT | |
| MNO | 0.05 | WT% | AAS | |
| MGO | 2.18 | WT% | AAS | |
| CAO | 5.32 | WT% | AAS | |
| NA2O | 3.66 | WT% | AAS | |
| K2O | 2.2 | WT% | AAS | |
| P2O5 | 0.18 | WT% | AAS | |
| H2O_PLUS | 0.35 | WT% | UNKNOWN | |
| H2O_MINUS | 0.25 | WT% | UNKNOWN | |
| TOTAL | 99.08 | WT% | AAS | |
| RB | 27 | PPM | XRF | |
| SR | 905 | PPM | XRF | |
| BA | 1587 | PPM | AAS | |
| NI | 32 | PPM | AAS | |
| CR | 53 | PPM | AAS | |
| ZR | 137 | PPM | XRF | |
| ZN | 32 | PPM | AAS | |
| CU | 19 | PPM | AAS |