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Sample MRH/93KV/8A
NavDat sample number 85672 · PYROCLASTIC-FALL
Sample
| Sample ID | MRH/93KV/8A |
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| Rock name | PYROCLASTIC-FALL |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | Pinkish gray vitric nonwelded tuff, poorly sorted with scarce very light gray pumice to 5 mm. Scarce to common mafics are mostly black, bronze, and gray biotite, but include black prismatic hornblende. Abundance of felsics very difficult to estimate, but quartz is present. |
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Location
| Latitude | 37.4189 |
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| Longitude | -116.073 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 15.05 |
|
15.1 |
15 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 13.63 | | WT% | XRF |
| BAO | 775.284 | | PPM | XRF |
| BA | 694.4 | | PPM | XRF |
| CAO | 1.547 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 1.882 | | WT% | XRF |
| K2O | 4.56 | | WT% | XRF |
| LOI | 3.93 | | WT% | XRF |
| MGO | 0.5258 | | WT% | XRF |
| MNO | 0.0788 | | WT% | XRF |
| MN | 0.061 | | WT% | XRF |
| NA2O | 2.987 | | WT% | XRF |
| NB2O5 | 56.649 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.0626 | | WT% | XRF |
| RB2O | 224.952 | | PPM | XRF |
| SIO2 | 69.97 | | WT% | XRF |
| SRO | 444.062 | | PPM | XRF |
| TIO2 | 0.2531 | | WT% | XRF |
| TOTAL | 99.41 | | WT% | XRF |
| V2O3 | 22.4776 | | PPM | XRF |
| Y2O3 | 52.8283 | | PPM | XRF |
| ZNO | 94.1133 | | PPM | XRF |
| ZN | 75.61 | | PPM | XRF |
| ZRO2 | 454.679 | | PPM | XRF |
| ZR | 336.6 | | PPM | XRF |
