Sample 442
NavDat sample number 52862 · DACITE
Sample
| Sample ID | 442 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.5833 |
|---|---|
| Longitude | -121.63 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.29 | 0.029 | 0.549 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.9 | WT% | XRF | |
| AL2O3 | 15.6 | WT% | XRF | |
| FEOT | 3.79 | WT% | XRF | |
| MGO | 1.03 | WT% | XRF | |
| CAO | 2.51 | WT% | XRF | |
| NA2O | 4.74 | WT% | XRF | |
| K2O | 3.4 | WT% | XRF | |
| TIO2 | 0.74 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| TOTAL | 98.94 | WT% | XRF | |
| LOI | 0.53 | WT% | XRF | |
| RB | 94 | PPM | XRF | |
| SR | 197 | PPM | XRF | |
| Y | 36 | PPM | XRF | |
| ZR | 298 | PPM | XRF | |
| NB | 11 | PPM | XRF | |
| BA | 811 | PPM | XRF | |
| SC | 9.9 | PPM | INAA | |
| CR | 2 | PPM | INAA | |
| CO | 4.9 | PPM | INAA | |
| RB | 93 | PPM | INAA | |
| SR | 188 | PPM | INAA | |
| ZR | 253 | PPM | INAA | |
| SB | 0.47 | PPM | INAA | |
| CS | 5.73 | PPM | INAA | |
| BA | 782 | PPM | INAA | |
| LA | 21.6 | PPM | INAA | |
| CE | 43.9 | PPM | INAA | |
| ND | 23.6 | PPM | INAA | |
| SM | 5.04 | PPM | INAA | |
| EU | 1.23 | PPM | INAA | |
| GD | 5.22 | PPM | INAA | |
| TB | 0.867 | PPM | INAA | |
| DY | 5.6 | PPM | INAA | |
| TM | 0.6 | PPM | INAA | |
| YB | 3.6 | PPM | INAA | |
| LU | 0.576 | PPM | INAA | |
| HF | 6.42 | PPM | INAA | |
| TA | 0.924 | PPM | INAA | |
| TH | 9.75 | PPM | INAA | |
| U | 4.13 | PPM | INAA | |
| MN | 674 | PPM | INAA |