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Sample U20N-3871
NavDat sample number 84815
Sample
| Sample ID | U20N-3871 |
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| Material | notfound |
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| Comment | Core from 3870.9 to 3871.0 ft depths in drill hole U20N is very pale yellowish brown devitrified intrusive dike with very abundant feldspar, to 8 mm in glomerocrystic clots. White plagioclase and clear K-spar have similar abundances; quartz is evident but very strongly subordinate to feldspar. Black biotite to 3 mm is common; a single reddish brown mafic pseudomorph was observed. Fractured surfaces are lightly coated with manganese dendrites. Lithology is inferred as intrusive from stratigraphic relations with neighboring intervals. |
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Location
| Latitude | 37.2408 |
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| Longitude | -116.42 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 12.515 |
|
12.53 |
12.5 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 15.21 | | WT% | XRF |
| BAO | 296.76 | | PPM | XRF |
| BA | 265.8 | | PPM | XRF |
| CAO | 0.4483 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 1.142 | | WT% | XRF |
| K2O | 4.701 | | WT% | XRF |
| LOI | 0.3722 | | WT% | XRF |
| MGO | 0.1186 | | WT% | XRF |
| MNO | 0.1172 | | WT% | XRF |
| MN | 0.0908 | | WT% | XRF |
| NA2O | 3.754 | | WT% | XRF |
| NB2O5 | 50.326 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.0168 | | WT% | XRF |
| RB2O | 233.153 | | PPM | XRF |
| SIO2 | 74.22 | | WT% | XRF |
| SRO | 76.348 | | PPM | XRF |
| TIO2 | 0.1938 | | WT% | XRF |
| TOTAL | 100.4 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 36.5607 | | PPM | XRF |
| ZNO | 89.4082 | | PPM | XRF |
| ZN | 71.83 | | PPM | XRF |
| ZRO2 | 364.716 | | PPM | XRF |
| ZR | 270 | | PPM | XRF |
