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Sample PM2-880B
NavDat sample number 85830 · PYROCLASTIC-FLOW
Sample
| Sample ID | PM2-880B |
|---|
| Rock name | PYROCLASTIC-FLOW |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | Very well sorted medium ash, mostly light gray 0.5-1.0 mm diameter hydroclastic shards. Felsics, nearly indistinguishable from hydroclastic shards, include quartz and appear to be scarce. Rare mafics include gray biotite to 0.7 mm. Single grains of dark green clinopyroxene and black pyroxene or olivine observed. |
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Location
| Latitude | 37.3432 |
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| Longitude | -116.568 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 14.155 |
|
14.16 |
14.15 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| HFO2 | 5.0056 | | PPM | NAA |
| MNO | 0.0608 | | WT% | NAA |
| MN | 0.0471 | | WT% | NAA |
| UO2 | 4.6931 | | PPM | NAA |
| AL2O3 | 12.07 | | WT% | XRF |
| BAO | 75.5745 | | PPM | XRF |
| BA | 67.69 | | PPM | XRF |
| CAO | 0.632 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 0.7921 | | WT% | XRF |
| K2O | 5.688 | | WT% | XRF |
| LOI | 4.8 | | WT% | XRF |
| MGO | 0.2009 | | WT% | XRF |
| MNO | 0.0721 | | WT% | XRF |
| MN | 0.0558 | | WT% | XRF |
| NA2O | 2.117 | | WT% | XRF |
| NB2O5 | 56.2627 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | | | WT% | XRF |
| RB2O | 293.848 | | PPM | XRF |
| SIO2 | 72.81 | | WT% | XRF |
| SRO | 56.4095 | | PPM | XRF |
| TIO2 | 0.1025 | | WT% | XRF |
| TOTAL | 99.33 | | WT% | XRF |
| V2O3 | 24.5077 | | PPM | XRF |
| Y2O3 | 34.5796 | | PPM | XRF |
| ZNO | 72.6419 | | PPM | XRF |
| ZN | 58.36 | | PPM | XRF |
| ZRO2 | 170.606 | | PPM | XRF |
| ZR | 126.3 | | PPM | XRF |
