Sample 78BR30
NavDat sample number 7881 · ANDESITE
Sample
| Sample ID | 78BR30 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 44.35 |
|---|---|
| Longitude | -122.867 |
| State / province | Oregon |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 30 | 25 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.12 | WT% | XRF | |
| TIO2 | 0.83 | WT% | XRF | |
| AL2O3 | 17.16 | WT% | XRF | |
| FEOT | 6.57 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 2.15 | WT% | XRF | |
| CAO | 5.03 | WT% | XRF | |
| NA2O | 4.04 | WT% | INAA | |
| K2O | 1.75 | WT% | XRF | |
| P2O5 | 0.23 | WT% | XRF | |
| TOTAL | 97.69 | WT% | XRF | |
| LOI | 1.21 | WT% | XRF | |
| BA | 398 | PPM | INAA | |
| LA | 21.2 | PPM | INAA | |
| CE | 48.2 | PPM | INAA | |
| RB | 53.29 | PPM | MS-ID | |
| SR | 274.7 | PPM | MS-ID | |
| CO | 12.5 | PPM | INAA | |
| CR | 26 | PPM | INAA | |
| SC | 20.2 | PPM | INAA |