Sample D1750
NavDat sample number 7433 · TUFF
Sample
| Sample ID | D1750 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | densely welded |
Location
| Latitude | 42.6922 |
|---|---|
| Longitude | -112.963 |
| Location | viewpoint on the south bank of the Snake River |
| State / province | Idaho |
| Volcanic field | Walcott Tuff, welded ash-flow tuff |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 6.4 | 5.8 | 7.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.49 | WT% | SPEC | |
| AL2O3 | 11.88 | WT% | SPEC | |
| FE2O3 | 0.67 | WT% | SPEC | |
| FEO | 0.8 | WT% | SPEC | |
| MGO | 0.16 | WT% | SPEC | |
| CAO | 0.6 | WT% | SPEC | |
| NA2O | 2.76 | WT% | SPEC | |
| K2O | 5.81 | WT% | SPEC | |
| H2O_PLUS | 2.73 | WT% | SPEC | |
| H2O_MINUS | 0.11 | WT% | SPEC | |
| TIO2 | 0.27 | WT% | SPEC | |
| P2O5 | 0.03 | WT% | SPEC | |
| MNO | 0.04 | WT% | SPEC | |
| F | 0.11 | WT% | SPEC | |
| TOTAL | 99.46 | WT% | SPEC | |
| BA | 890 | PPM | SPEC | |
| BE | 7 | PPM | SPEC | |
| CO | -1 | PPM | SPEC | |
| CR | -1 | PPM | SPEC | |
| CU | 2 | PPM | SPEC | |
| GA | 16 | PPM | SPEC | |
| LA | 100 | PPM | SPEC | |
| MO | 6 | PPM | SPEC | |
| NB | 40 | PPM | SPEC | |
| NI | -2 | PPM | SPEC | |
| PB | 30 | PPM | SPEC | |
| SC | -4 | PPM | SPEC | |
| SN | 6 | PPM | SPEC | |
| SR | 10 | PPM | SPEC | |
| V | 4 | PPM | SPEC | |
| Y | 94 | PPM | SPEC | |
| YB | 8 | PPM | SPEC | |
| ZR | 340 | PPM | SPEC | |
| B | -10 | PPM | SPEC |