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Sample UE7BC-2554.5
NavDat sample number 84358 · PYROCLASTIC-FALL
Sample
| Sample ID | UE7BC-2554.5 |
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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 | Sample is grayish yellow zeolitic nonwelded tuff with common white pumice to 7 mm. Biotite is scarce and lithics to 4 mm are common. Lance B. Prothro noted on 13 December 1999 that core is continuous and unbroken through the depth assigned for this sample; thus, the assigned sample depth is in error. |
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Location
| Latitude | 37.0761 |
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| Longitude | -116.005 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 15.65 |
|
15.7 |
15.6 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| UO2 | 5.8808 | | PPM | NAA |
| BAO | 549.755 | | PPM | XRF |
| BA | 492.4 | | PPM | XRF |
| CE2O3 | 149.571 | | PPM | XRF |
| FE2O3 | 1.74 | | WT% | XRF |
| LA2O3 | 89.3995 | | PPM | XRF |
| NB2O5 | 40.9275 | | PPM | XRF |
| ND2O3 | 46.2574 | | PPM | XRF |
| RB2O | 185.363 | | PPM | XRF |
| SRO | 1112.58 | | PPM | XRF |
| Y2O3 | 36.2813 | | PPM | XRF |
| ZNO | 96.055 | | PPM | XRF |
| ZN | 77.17 | | PPM | XRF |
| ZRO2 | 320.275 | | PPM | XRF |
| ZR | 237.1 | | PPM | XRF |
