Sample 208
NavDat sample number 32759 · TRACHYTE
Sample
| Sample ID | 208 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | bostonite porphyry |
Location
| Latitude | 40.0333 |
|---|---|
| Longitude | -105.45 |
| Location | Bald Mountain stock |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 65 | 60 | 70 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.4 | WT% | UNKNOWN | |
| AL2O3 | 1.5 | WT% | UNKNOWN | |
| FE2O3 | 1.5 | WT% | UNKNOWN | |
| FEO | 0.32 | WT% | UNKNOWN | |
| MGO | 0.06 | WT% | UNKNOWN | |
| CAO | 1.1 | WT% | UNKNOWN | |
| NA2O | 5.4 | WT% | UNKNOWN | |
| K2O | 5.9 | WT% | UNKNOWN | |
| H2O_PLUS | 1 | WT% | UNKNOWN | |
| H2O_MINUS | 0.34 | WT% | UNKNOWN | |
| TIO2 | 0.09 | WT% | UNKNOWN | |
| P2O5 | 0.07 | WT% | UNKNOWN | |
| MNO | 0.08 | WT% | UNKNOWN | |
| CO2 | 0.42 | WT% | UNKNOWN | |
| BA | 1400 | PPM | SPEC | |
| BE | 4 | PPM | SPEC | |
| CE | 61 | PPM | SPEC | |
| CO | 0 | PPM | SPEC | |
| CR | 6 | PPM | SPEC | |
| CU | 19 | PPM | SPEC | |
| GA | 39 | PPM | SPEC | |
| LA | 52 | PPM | SPEC | |
| MO | 2 | PPM | SPEC | |
| NB | 20 | PPM | SPEC | |
| ND | 0 | PPM | SPEC | |
| NI | 3 | PPM | SPEC | |
| PB | 91 | PPM | SPEC | |
| SC | 0 | PPM | SPEC | |
| SR | 432 | PPM | SPEC | |
| TH | 0 | PPM | SPEC | |
| V | 16 | PPM | SPEC | |
| Y | 9 | PPM | SPEC | |
| YB | 2 | PPM | SPEC | |
| ZN | 75 | PPM | SPEC | |
| ZR | 212 | PPM | SPEC |