Sample 202109
NavDat sample number 38406 · DIORITE
Sample
| Sample ID | 202109 |
|---|---|
| Rock name | DIORITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | duBray and Harlan |
| Comment | Diorite to granodiorite stock |
Location
| Latitude | 45.577 |
|---|---|
| Longitude | -109.942 |
| Location | Sliderock Mountain |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 78.53 | 78.28 | 78.78 |
Analyses
Mineral
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.91 | WT% | XRF | |
| AL2O3 | 17.56 | WT% | XRF | |
| FE2O3 | 0.79 | WT% | XRF | |
| FEO | 4.05 | WT% | XRF | |
| MGO | 20.5 | WT% | XRF | |
| CAO | 5.13 | WT% | XRF | |
| NA2O | 3.81 | WT% | XRF | |
| K2O | 2.77 | WT% | XRF | |
| TIO2 | 0.5 | WT% | XRF | |
| P2O5 | 0.32 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| LOI | 1.86 | WT% | XRF | |
| RB | 67 | PPM | XRF | |
| SR | 946 | PPM | EDXRF | |
| Y | 21 | PPM | EDXRF | |
| ZR | 149 | PPM | EDXRF | |
| NB | 13 | PPM | EDXRF | |
| PB | 16 | PPM | EDXRF | |
| BA | 1681 | PPM | EDXRF | |
| LA | 31 | PPM | EDXRF | |
| CE | 57 | PPM | EDXRF | |
| ND | 33 | PPM | EDXRF |