Sample 7Y239c
NavDat sample number 3147 · RHYODACITE
Sample
| Sample ID | 7Y239c |
|---|---|
| Rock name | RHYODACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | porphyritic with phenocrysts of plagioclase, biotite, and hornblende |
Location
| Latitude | 45.0126 |
|---|---|
| Longitude | -110.852 |
| Location | Electric Peak |
| State / province | Montana |
| Volcanic field | Electric Peak sill |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 44 | 34 | 55 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.2 | WT% | RAPID_ROCK | |
| AL2O3 | 15.8 | WT% | RAPID_ROCK | |
| FE2O3 | 1.8 | WT% | RAPID_ROCK | |
| FEO | 3.5 | WT% | RAPID_ROCK | |
| MGO | 3.1 | WT% | RAPID_ROCK | |
| CAO | 4.3 | WT% | RAPID_ROCK | |
| NA2O | 4 | WT% | RAPID_ROCK | |
| K2O | 2.2 | WT% | RAPID_ROCK | |
| H2O_MINUS | 0.44 | WT% | RAPID_ROCK | |
| H2O_PLUS | 1.5 | WT% | RAPID_ROCK | |
| TIO2 | 0.55 | WT% | RAPID_ROCK | |
| P2O5 | 0.17 | WT% | RAPID_ROCK | |
| MNO | 0.1 | WT% | RAPID_ROCK | |
| CO2 | 0.18 | WT% | RAPID_ROCK | |
| TOTAL | 100 | WT% | RAPID_ROCK | |
| AG | 0 | PPM | SPEC | |
| BA | 2000 | PPM | SPEC | |
| BE | 1 | PPM | SPEC | |
| CE | 150 | PPM | SPEC | |
| CO | 15 | PPM | SPEC | |
| CR | 70 | PPM | SPEC | |
| CU | 30 | PPM | SPEC | |
| GA | 20 | PPM | SPEC | |
| LA | 100 | PPM | SPEC | |
| MO | 3 | PPM | SPEC | |
| NB | 5 | PPM | SPEC | |
| NI | 50 | PPM | SPEC | |
| PB | 20 | PPM | SPEC | |
| SC | 15 | PPM | SPEC | |
| SR | 1500 | PPM | SPEC | |
| V | 150 | PPM | SPEC | |
| Y | 20 | PPM | SPEC | |
| YB | 2 | PPM | SPEC | |
| ZR | 150 | PPM | SPEC |