Sample 78BR16
NavDat sample number 7879 · ANDESITE
Sample
| Sample ID | 78BR16 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 44.4208 |
|---|---|
| Longitude | -122.983 |
| 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 | 60.37 | WT% | XRF | |
| TIO2 | 1.24 | WT% | XRF | |
| AL2O3 | 15.36 | WT% | XRF | |
| FEOT | 8.79 | WT% | XRF | |
| MNO | 0.19 | WT% | XRF | |
| MGO | 2.59 | WT% | XRF | |
| CAO | 5.84 | WT% | XRF | |
| NA2O | 4.35 | WT% | INAA | |
| K2O | 1.05 | WT% | XRF | |
| P2O5 | 0.22 | WT% | XRF | |
| TOTAL | 97.65 | WT% | XRF | |
| LOI | 1.83 | WT% | XRF | |
| BA | 259 | PPM | INAA | |
| LA | 15.5 | PPM | INAA | |
| CE | 34 | PPM | INAA | |
| RB | 19.59 | PPM | MS-ID | |
| SR | 316.9 | PPM | MS-ID | |
| CO | 18.2 | PPM | INAA | |
| CR | 14 | PPM | INAA | |
| SC | 28.5 | PPM | INAA |