Sample B-78
NavDat sample number 3791 · TUFF
Sample
| Sample ID | B-78 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Elongate black glassy fiamme, many with white cores, in densely-welded incipiently-devitrified matrix |
Location
| Latitude | 37.8616 |
|---|---|
| Longitude | -119.075 |
| 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 | 73.3 | WT% | WET | |
| TIO2 | 0.2 | WT% | WET | |
| AL2O3 | 12.71 | WT% | WET | |
| FE2O3 | 0.72 | WT% | WET | |
| FEO | 0.39 | WT% | WET | |
| MNO | 0.03 | WT% | WET | |
| MGO | 0.15 | WT% | WET | |
| CAO | 0.89 | WT% | WET | |
| NA2O | 3.22 | WT% | WET | |
| K2O | 5.37 | WT% | WET | |
| P2O5 | 0.06 | WT% | WET | |
| H2O | 1.59 | WT% | WET | |
| TOTAL | 99.07 | WT% | WET | |
| RB | 106 | PPM | XRF | |
| SR | 100 | PPM | XRF | |
| Y | 12 | PPM | XRF | |
| ZR | 128 | PPM | XRF | |
| NB | 4 | PPM | XRF | |
| BA | 1.06 | PPM | XRF | |
| BA | 31.22 | PPM | XRF | |
| H2O_MINUS | 0.3 | WT% | WET | |
| LA | 60.4 | PPM | INAA | |
| CE | 96.6 | PPM | INAA | |
| ND | 29.4 | PPM | INAA | |
| SM | 3.04 | PPM | INAA | |
| EU | 0.387 | PPM | INAA | |
| TB | 0.27 | PPM | INAA | |
| DY | 1.85 | PPM | INAA | |
| YB | 1.27 | PPM | INAA | |
| LU | 0.2 | PPM | INAA | |
| RB | 104 | PPM | INAA | |
| CS | 2.3 | PPM | INAA | |
| BA | 485 | PPM | INAA | |
| TH | 13.31 | PPM | INAA | |
| U | 2.93 | PPM | INAA | |
| SC | 1.89 | PPM | INAA | |
| HF | 4.1 | PPM | INAA | |
| TA | 0.84 | PPM | INAA | |
| CR | 3.3 | PPM | INAA | |
| CO | 1.17 | PPM | INAA | |
| ZN | 41 | PPM | INAA | |
| MN | 175 | PPM | INAA | |
| W | 1.2 | PPM | INAA | |
| SB | 0.4 | PPM | INAA |