Sample B-77
NavDat sample number 3792 · TUFF
Sample
| Sample ID | B-77 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Elevation 7350', crest of Aeolian Buttes, a few meters from granitic outcrop. White-cored pumice lapilli and blocks in partially-weled vitric caprock. |
Location
| Latitude | 37.8609 |
|---|---|
| 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 | 73.1 | WT% | WET | |
| TIO2 | 0.19 | WT% | WET | |
| AL2O3 | 12.11 | WT% | WET | |
| FE2O3 | 0.98 | WT% | WET | |
| FEO | 0.09 | WT% | WET | |
| MNO | 0.02 | WT% | WET | |
| MGO | 0.33 | WT% | WET | |
| CAO | 0.93 | WT% | WET | |
| NA2O | 3.27 | WT% | WET | |
| K2O | 5.21 | WT% | WET | |
| P2O5 | 0.06 | WT% | WET | |
| H2O | 2.67 | WT% | WET | |
| TOTAL | 99.46 | WT% | WET | |
| RB | 106 | PPM | XRF | |
| SR | 109 | PPM | XRF | |
| Y | 13 | PPM | XRF | |
| ZR | 139 | PPM | XRF | |
| NB | 3 | PPM | XRF | |
| BA | 0.97 | PPM | XRF | |
| BA | 38.08 | PPM | XRF | |
| H2O_MINUS | 0.33 | WT% | WET | |
| LA | 60.7 | PPM | INAA | |
| CE | 98.1 | PPM | INAA | |
| ND | 27.8 | PPM | INAA | |
| SM | 2.99 | PPM | INAA | |
| EU | 0.373 | PPM | INAA | |
| TB | 0.27 | PPM | INAA | |
| DY | 1.55 | PPM | INAA | |
| YB | 1.1 | PPM | INAA | |
| LU | 0.15 | PPM | INAA | |
| RB | 97 | PPM | INAA | |
| CS | 1.9 | PPM | INAA | |
| BA | 463 | PPM | INAA | |
| TH | 13.03 | PPM | INAA | |
| U | 2.58 | PPM | INAA | |
| SC | 1.8 | PPM | INAA | |
| HF | 3.65 | PPM | INAA | |
| TA | 0.85 | PPM | INAA | |
| CR | 2.1 | PPM | INAA | |
| CO | 0.99 | PPM | INAA | |
| ZN | 59 | PPM | INAA | |
| MN | 200 | PPM | INAA | |
| W | 1 | PPM | INAA | |
| SB | 0.53 | PPM | INAA |