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Sample UE20C-3110
NavDat sample number 86018 · PYROCLASTIC-FALL
Sample
| Sample ID | UE20C-3110 |
|---|
| 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 | Core is pinkish gray zeolitic nonwelded tuff with common pale grayish green pumice to 4 mm, occasionally to 11 mm, and scarce to rare very light brown hydroclastic shards to 3 mm. Black biotite to 0.6 mm is scarce, and lithics to 2.5 mm are scarce to rare. |
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Location
| Latitude | 37.2294 |
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| Longitude | -116.472 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 12.85 |
|
12.9 |
12.8 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| HFO2 | 5.5621 | | PPM | NAA |
| MNO | 0.0476 | | WT% | NAA |
| MN | 0.0369 | | WT% | NAA |
| UO2 | 5.0912 | | PPM | NAA |
