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Sample UE7F-2161
NavDat sample number 84409 · PYROCLASTIC-FLOW
Sample
| Sample ID | UE7F-2161 |
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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 | Sample, described from thin section butt, is moderate orange pink dry and moderate pink wet zeolitic medium ash with abundant white pumice, mostly 0.5 mm, to 2 mm. Abundant felsic phenocrysts are feldspar and quartz, and common tiny mafics are mostly bronze biotite and lesser pseudomorphic hornblende. Lithics are scarce. |
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Location
| Latitude | 37.0887 |
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| Longitude | -116.049 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 14.41 |
|
14.45 |
14.37 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| UO2 | 3.6959 | | PPM | NAA |
| BAO | 755.41 | | PPM | XRF |
| BA | 676.6 | | PPM | XRF |
| CE2O3 | 152.265 | | PPM | XRF |
| FE2O3 | 1.88 | | WT% | XRF |
| LA2O3 | 94.8997 | | PPM | XRF |
| NB2O5 | 45.0188 | | PPM | XRF |
| ND2O3 | 55.7749 | | PPM | XRF |
| RB2O | 166.226 | | PPM | XRF |
| SRO | 342.596 | | PPM | XRF |
| Y2O3 | 48.3836 | | PPM | XRF |
| ZNO | 38.7357 | | PPM | XRF |
| ZN | 31.12 | | PPM | XRF |
| ZRO2 | 333.918 | | PPM | XRF |
| ZR | 247.2 | | PPM | XRF |
