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Sample PR95/26
NavDat sample number 85938 · PYROCLASTIC-FLOW
Sample
| Sample ID | PR95/26 |
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| 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 | Samples PR95/24-28 were collected from an 8.7 m thick basaltic dike trending N40W and along a 0.7 m thick pumice fall trending N55E. PR95/26 is poorly consolidated light brownish gray pumiceous tuff, with millimeter-thick fine-grained layers, sampled 1.3 m from the contact with basalt. The sample is well sorted and matrix free-grain supported, with few lithic fragments. PR95/26 was sampled along the same layer of the unit as PR95/24 and 25. |
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Location
| Latitude | 37.1072 |
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| Longitude | -115.978 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 11.74 |
|
11.8 |
11.68 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 12.39 | | WT% | XRF |
| BAO | 379.268 | | PPM | XRF |
| BA | 339.7 | | PPM | XRF |
| CAO | 0.756 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 0.8879 | | WT% | XRF |
| K2O | 4.671 | | WT% | XRF |
| LOI | 3.27 | | WT% | XRF |
| MGO | 0.3402 | | WT% | XRF |
| MNO | 0.0673 | | WT% | XRF |
| MN | 0.0521 | | WT% | XRF |
| NA2O | 2.746 | | WT% | XRF |
| NB2O5 | 31.0139 | | PPM | XRF |
| NIO | 12.6791 | | PPM | XRF |
| NI | 9.963 | | PPM | XRF |
| P2O5 | 0.0177 | | WT% | XRF |
| RB2O | 196.518 | | PPM | XRF |
| SIO2 | 74.22 | | WT% | XRF |
| SRO | 120.506 | | PPM | XRF |
| TIO2 | 0.0919 | | WT% | XRF |
| TOTAL | 99.45 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 34.7574 | | PPM | XRF |
| ZNO | 43.8266 | | PPM | XRF |
| ZN | 35.21 | | PPM | XRF |
| ZRO2 | 143.995 | | PPM | XRF |
| ZR | 106.6 | | PPM | XRF |
