Sample B-112
NavDat sample number 3819 · RHYOLITE
Sample
| Sample ID | B-112 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Scarce white pumice lapilli, < 1 cm diameter, in non-welded unusually ash-rich matrix. Grades upward to pinker partially-welded caprock. |
Location
| Latitude | 37.6284 |
|---|---|
| Longitude | -119.072 |
| 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 |
|---|---|---|---|---|
| LA | 21.8 | PPM | INAA | |
| CE | 40.1 | PPM | INAA | |
| ND | 21.4 | PPM | INAA | |
| SM | 3.94 | PPM | INAA | |
| EU | 0.053 | PPM | INAA | |
| TB | 0.67 | PPM | INAA | |
| DY | 4.1 | PPM | INAA | |
| YB | 2.77 | PPM | INAA | |
| LU | 0.39 | PPM | INAA | |
| RB | 178 | PPM | INAA | |
| CS | 5.8 | PPM | INAA | |
| BA | 11 | PPM | INAA | |
| TH | 22.1 | PPM | INAA | |
| U | 7.11 | PPM | INAA | |
| SC | 3.23 | PPM | INAA | |
| HF | 4.08 | PPM | INAA | |
| TA | 2.22 | PPM | INAA | |
| CR | 3.8 | PPM | INAA | |
| CO | 0.17 | PPM | INAA | |
| ZN | 44 | PPM | INAA | |
| MN | 235 | PPM | INAA | |
| W | 3 | PPM | INAA | |
| SB | 1.2 | PPM | INAA |