Sample H3268
NavDat sample number 7423 · PYROCLASTIC-FLOW
Sample
| Sample ID | H3268 |
|---|---|
| Rock name | PYROCLASTIC-FLOW |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | nonwelded top of a welded obsidian tuff that overlies the tuff of Arbon Valley |
Location
| Latitude | 42.7921 |
|---|---|
| Longitude | -112.721 |
| 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 | 74.18 | WT% | SPEC | |
| AL2O3 | 11.59 | WT% | SPEC | |
| FE2O3 | 0.81 | WT% | SPEC | |
| FEO | 0.7 | WT% | SPEC | |
| MGO | 0.07 | WT% | SPEC | |
| CAO | 0.55 | WT% | SPEC | |
| NA2O | 2.44 | WT% | SPEC | |
| K2O | 6.13 | WT% | SPEC | |
| H2O_PLUS | 2.57 | WT% | SPEC | |
| H2O_MINUS | 0.04 | WT% | SPEC | |
| TIO2 | 0.16 | WT% | SPEC | |
| P2O5 | 0.01 | WT% | SPEC | |
| MNO | 0.03 | WT% | SPEC | |
| CO2 | 0.01 | WT% | SPEC | |
| F | 0.08 | WT% | SPEC | |
| TOTAL | 99.37 | WT% | SPEC | |
| BA | 340 | PPM | SPEC | |
| BE | 4 | PPM | SPEC | |
| CO | -2 | PPM | SPEC | |
| CR | 1 | PPM | SPEC | |
| CU | 20 | PPM | SPEC | |
| GA | 23 | PPM | SPEC | |
| LA | 130 | PPM | SPEC | |
| MO | 3 | PPM | SPEC | |
| NB | 50 | PPM | SPEC | |
| NI | -2 | PPM | SPEC | |
| PB | 30 | PPM | SPEC | |
| SC | -4 | PPM | SPEC | |
| SN | 20 | PPM | SPEC | |
| SR | 20 | PPM | SPEC | |
| V | -3 | PPM | SPEC | |
| Y | 80 | PPM | SPEC | |
| YB | 8 | PPM | SPEC | |
| ZR | 260 | PPM | SPEC | |
| B | 10 | PPM | SPEC |