Sample 202092
NavDat sample number 38397 · BASALTIC-ANDESITE
Sample
| Sample ID | 202092 |
|---|---|
| Rock name | BASALTIC-ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | duBray and Harlan |
| Comment | Basaltic andesite lava flows |
Location
| Latitude | 45.6284 |
|---|---|
| Longitude | -109.994 |
| 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 | 53.3 | WT% | XRF | |
| AL2O3 | 17.66 | WT% | XRF | |
| FE2O3 | 1.42 | WT% | XRF | |
| FEO | 7.26 | WT% | XRF | |
| MGO | 3.79 | WT% | XRF | |
| CAO | 9.13 | WT% | XRF | |
| NA2O | 3.12 | WT% | XRF | |
| K2O | 2.69 | WT% | XRF | |
| TIO2 | 0.9 | WT% | XRF | |
| P2O5 | 0.56 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| LOI | 1.84 | WT% | XRF | |
| RB | 45 | PPM | XRF | |
| SR | 971 | PPM | EDXRF | |
| Y | 32 | PPM | EDXRF | |
| ZR | 169 | PPM | EDXRF | |
| NB | 9 | PPM | EDXRF | |
| BA | 1013 | PPM | EDXRF | |
| LA | 18 | PPM | EDXRF | |
| CE | 67 | PPM | EDXRF | |
| ND | 32 | PPM | EDXRF |