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Sample UE20H-4680B
NavDat sample number 86395 · PYROCLASTIC-FLOW
Sample
| Sample ID | UE20H-4680B |
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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 | This sample of core from 4680 ft depth is grayish pink potassic nonwelded tuff with scarce to common white pumice to 3 mm. Scarce tiny felsics that include very conspicuous quartz to 1 mm, and black to bronze biotite to 0.5 mm, and scarce to common lithics to 10 mm. The sample is somewhat brecciated and veined with a white secondary mineral, probably adularia. |
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Location
| Latitude | 37.27 |
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| Longitude | -116.434 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 12.95 |
|
13 |
12.9 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| CE2O3 | 144.066 | | PPM | NAA |
| FE2O3 | 1.058 | | WT% | NAA |
| HFO2 | 6.6741 | | PPM | NAA |
| MNO | 0.05 | | WT% | NAA |
| MN | 0.0387 | | WT% | NAA |
| SC2O3 | 4.9994 | | PPM | NAA |
| THO2 | 26.7966 | | PPM | NAA |
| UO2 | 3.0482 | | PPM | NAA |
