← Search
Sample U20A2WW-4402
NavDat sample number 84546 · PYROCLASTIC-FALL
Sample
| Sample ID | U20A2WW-4402 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Core from 4401.9 to 4402.0 ft depths in drill hole U20A2WW is very strongly indurated potassic nonwelded tuff with scarce bronze to black biotite to 1.8 mm, and scarce to rare felsics to 2 mm. Lithics are scarce to rare, with one large, 14 mm light gray lava with common biotite. |
|---|
Location
| Latitude | 37.2408 |
|---|
| Longitude | -116.421 |
|---|
| State / province | NEVADA |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 12.515 |
|
12.53 |
12.5 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 15.65 | | WT% | XRF |
| BAO | 274.319 | | PPM | XRF |
| BA | 245.7 | | PPM | XRF |
| CAO | 0.8802 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 1.257 | | WT% | XRF |
| K2O | 5.6 | | WT% | XRF |
| LOI | 0.7165 | | WT% | XRF |
| MGO | 0.1181 | | WT% | XRF |
| MNO | 0.1225 | | WT% | XRF |
| MN | 0.0949 | | WT% | XRF |
| NA2O | 4.034 | | WT% | XRF |
| NB2O5 | 55.2757 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.0185 | | WT% | XRF |
| RB2O | 249.667 | | PPM | XRF |
| SIO2 | 72.32 | | WT% | XRF |
| SRO | 94.7491 | | PPM | XRF |
| TIO2 | 0.195 | | WT% | XRF |
| TOTAL | 101 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 58.7587 | | PPM | XRF |
| ZNO | 106.399 | | PPM | XRF |
| ZN | 85.48 | | PPM | XRF |
| ZRO2 | 378.359 | | PPM | XRF |
| ZR | 280.1 | | PPM | XRF |
