Sample B-105
NavDat sample number 3801 · TUFF
Sample
| Sample ID | B-105 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | White to very pale pink pumice lapilli and blocks (to 15 cm diameter) from basal 4 m of non-welded ash-flow tuff |
Location
| Latitude | 37.7446 |
|---|---|
| Longitude | -118.455 |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.76 | 0.759 | 0.761 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.88 | WT% | WET | |
| TIO2 | 0.06 | WT% | WET | |
| MGO | 0.02 | WT% | WET | |
| CAO | 0.46 | WT% | WET | |
| NA2O | 3.67 | WT% | WET | |
| K2O | 4.62 | WT% | WET | |
| H2O | 2.53 | WT% | WET | |
| TOTAL | 98.5 | WT% | WET | |
| RB | 189 | PPM | XRF | |
| SR | 2 | PPM | XRF | |
| Y | 23 | PPM | XRF | |
| ZR | 92 | PPM | XRF | |
| NB | 25 | PPM | XRF | |
| BA | 94.5 | PPM | XRF | |
| BA | 24.4 | PPM | XRF | |
| FEO | 0.64 | WT% | INAA | |
| MNO | 0.03 | WT% | INAA | |
| AL2O3 | 12.28 | WT% | XRF | |
| H2O_MINUS | 0.3 | WT% | WET | |
| LA | 20.9 | PPM | INAA | |
| CE | 45.7 | PPM | INAA | |
| ND | 18.6 | PPM | INAA | |
| SM | 3.63 | PPM | INAA | |
| EU | 0.038 | PPM | INAA | |
| TB | 0.54 | PPM | INAA | |
| DY | 3.69 | PPM | INAA | |
| YB | 2.58 | PPM | INAA | |
| LU | 0.36 | PPM | INAA | |
| RB | 186 | PPM | INAA | |
| CS | 5.4 | PPM | INAA | |
| BA | 10 | PPM | INAA | |
| TH | 20.16 | PPM | INAA | |
| U | 6.51 | PPM | INAA | |
| SC | 2.89 | PPM | INAA | |
| HF | 3.77 | PPM | INAA | |
| TA | 2 | PPM | INAA | |
| CR | 3.1 | PPM | INAA | |
| CO | 0.61 | PPM | INAA | |
| ZN | 34 | PPM | INAA | |
| MN | 262 | PPM | INAA | |
| W | 3.6 | PPM | INAA | |
| SB | 1.2 | PPM | INAA |