Sample 331
NavDat sample number 52841 · DACITE
Sample
| Sample ID | 331 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.5803 |
|---|---|
| Longitude | -121.497 |
| 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 | 63 | WT% | XRF | |
| AL2O3 | 16.3 | WT% | XRF | |
| FEOT | 5.81 | WT% | XRF | |
| MGO | 1.91 | WT% | XRF | |
| CAO | 4.42 | WT% | XRF | |
| NA2O | 4.88 | WT% | XRF | |
| K2O | 2.09 | WT% | XRF | |
| TIO2 | 1.11 | WT% | XRF | |
| P2O5 | 0.31 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| TOTAL | 100.35 | WT% | XRF | |
| NA2O | 5.02 | WT% | FPHOT | |
| K2O | 2.094 | WT% | FPHOT | |
| RB | 57 | PPM | XRF | |
| SR | 412 | PPM | XRF | |
| Y | 31 | PPM | XRF | |
| ZR | 225 | PPM | XRF | |
| NB | 9 | PPM | XRF | |
| BA | 618 | PPM | XRF | |
| CU | 60 | PPM | XRF | |
| ZN | 100 | PPM | XRF | |
| SC | 18.3 | PPM | INAA | |
| CR | 2 | PPM | INAA | |
| CO | 10.5 | PPM | INAA | |
| RB | 59 | PPM | INAA | |
| SR | 404 | PPM | INAA | |
| ZR | 208 | PPM | INAA | |
| SB | 0.33 | PPM | INAA | |
| CS | 2.65 | PPM | INAA | |
| BA | 630 | PPM | INAA | |
| LA | 19.6 | PPM | INAA | |
| CE | 44.6 | PPM | INAA | |
| ND | 23.5 | PPM | INAA | |
| SM | 5.9 | PPM | INAA | |
| EU | 1.56 | PPM | INAA | |
| GD | 5.59 | PPM | INAA | |
| TB | 0.96 | PPM | INAA | |
| DY | 6.19 | PPM | INAA | |
| TM | 0.57 | PPM | INAA | |
| YB | 3.47 | PPM | INAA | |
| LU | 0.572 | PPM | INAA | |
| HF | 5.53 | PPM | INAA | |
| TA | 0.63 | PPM | INAA | |
| TH | 5.68 | PPM | INAA | |
| U | 2.14 | PPM | INAA | |
| MN | 1070 | PPM | INAA |