Sample 202093
NavDat sample number 38398 · BASALTIC-ANDESITE
Sample
| Sample ID | 202093 |
|---|---|
| Rock name | BASALTIC-ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | duBray and Harlan |
| Comment | Basaltic andesite lava flows |
Location
| Latitude | 45.6516 |
|---|---|
| Longitude | -109.957 |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 75.31 | 74.89 | 75.73 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 55.66 | WT% | XRF | |
| AL2O3 | 18.9 | WT% | XRF | |
| FE2O3 | 1.2 | WT% | XRF | |
| FEO | 6.11 | WT% | XRF | |
| MGO | 3.14 | WT% | XRF | |
| CAO | 6.49 | WT% | XRF | |
| NA2O | 3.71 | WT% | XRF | |
| K2O | 3.44 | WT% | XRF | |
| TIO2 | 0.72 | WT% | XRF | |
| P2O5 | 0.52 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| LOI | 2.86 | WT% | XRF | |
| RB | 66 | PPM | XRF | |
| SR | 974 | PPM | EDXRF | |
| Y | 29 | PPM | EDXRF | |
| ZR | 158 | PPM | EDXRF | |
| NB | 9 | PPM | EDXRF | |
| PB | 24 | PPM | EDXRF | |
| BA | 1723 | PPM | EDXRF | |
| LA | 32 | PPM | EDXRF | |
| CE | 67 | PPM | EDXRF | |
| ND | 42 | PPM | EDXRF |