Sample A28
NavDat sample number 127407 · GRANODIORITE
Sample
| Sample ID | A28 |
|---|---|
| Rock name | GRANODIORITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Coarse grained porphyry |
Location
| Latitude | 40.13 |
|---|---|
| Longitude | -105.38 |
| Location | Jamestown mining district |
| State / province | COLORADO |
| Formation | Porphyry Mountain Stock |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 56 | 54.34 | 57.65 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 64.47 | WT% | XRF | |
| TIO2 | 0.23 | WT% | XRF | |
| AL2O3 | 15.85 | WT% | XRF | |
| FE2O3 | 1.8 | WT% | XRF | |
| MNO | 0 | WT% | XRF | |
| MGO | 0.79 | WT% | XRF | |
| CAO | 1.13 | WT% | XRF | |
| NA2O | 5.29 | WT% | XRF | |
| K2O | 4.85 | WT% | XRF | |
| P2O5 | 0.09 | WT% | XRF | |
| V | 0.00432 | PPM | UNKNOWN | |
| MN | 143.05 | PPM | UNKNOWN | |
| CO | 13.88 | PPM | UNKNOWN | |
| NI | 3.18 | PPM | UNKNOWN | |
| CU | 21.55 | PPM | UNKNOWN | |
| ZN | 19.1 | PPM | UNKNOWN | |
| RB | 208.94 | PPM | UNKNOWN | |
| SR | 0.23 | PPM | UNKNOWN | |
| Y | 11.67 | PPM | UNKNOWN | |
| ZR | 282.84 | PPM | UNKNOWN | |
| NB | 42.74 | PPM | UNKNOWN | |
| MO | 7.66 | PPM | UNKNOWN | |
| U | 0 | PPM | UNKNOWN | |
| ARSENIC | 46.06 | PPM | UNKNOWN | |
| SE | 0.00048 | PPM | UNKNOWN | |
| AG | 0.0035 | PPM | UNKNOWN | |
| CD | 0.00066 | PPM | UNKNOWN | |
| SN | 7.88 | PPM | UNKNOWN | |
| SB | 2.09 | PPM | UNKNOWN | |
| TE | 0.00075 | PPM | UNKNOWN | |
| BA | 0.1 | PPM | UNKNOWN | |
| LA | 0 | PPM | UNKNOWN | |
| CE | 19.1 | PPM | UNKNOWN |