Sample E1895
NavDat sample number 7426 · PYROCLASTIC-FALL
Sample
| Sample ID | E1895 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | 50 ft stratigraphically below base of Neeley Formation |
Location
| Latitude | 42.7566 |
|---|---|
| Longitude | -112.875 |
| Location | upper Ferry Hollow |
| State / province | Idaho |
| Volcanic field | Starlight Formation, Upper Member |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 6 | 6 | 7 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 72.25 | WT% | SPEC | |
| AL2O3 | 11.74 | WT% | SPEC | |
| FE2O3 | 0.65 | WT% | SPEC | |
| FEO | 0.59 | WT% | SPEC | |
| MGO | 0.23 | WT% | SPEC | |
| CAO | 0.55 | WT% | SPEC | |
| NA2O | 2.44 | WT% | SPEC | |
| K2O | 5.61 | WT% | SPEC | |
| H2O_PLUS | 0.46 | WT% | SPEC | |
| H2O_MINUS | 4.75 | WT% | SPEC | |
| TIO2 | 0.21 | WT% | SPEC | |
| P2O5 | 0.02 | WT% | SPEC | |
| MNO | 0.03 | WT% | SPEC | |
| CO2 | 0 | WT% | SPEC | |
| F | 0.13 | WT% | SPEC | |
| TOTAL | 99.66 | WT% | SPEC | |
| BA | 570 | PPM | SPEC | |
| BE | 3 | PPM | SPEC | |
| CO | -1 | PPM | SPEC | |
| CR | 5 | PPM | SPEC | |
| CU | 5 | PPM | SPEC | |
| GA | 17 | PPM | SPEC | |
| LA | 120 | PPM | SPEC | |
| MO | 5 | PPM | SPEC | |
| NB | 50 | PPM | SPEC | |
| NI | 4 | PPM | SPEC | |
| PB | 30 | PPM | SPEC | |
| SC | 5 | PPM | SPEC | |
| SN | 9 | PPM | SPEC | |
| SR | 20 | PPM | SPEC | |
| V | -2 | PPM | SPEC | |
| Y | 60 | PPM | SPEC | |
| YB | 6 | PPM | SPEC | |
| ZR | 310 | PPM | SPEC | |
| B | 10 | PPM | SPEC |