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Sample DS74A7
NavDat sample number 84265 · NOT-GIVEN
Sample
| Sample ID | DS74A7 |
|---|
| Rock name | NOT-GIVEN |
|---|
| Rock type | VOLCANIC |
|---|
| Material | IGNEOUS |
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| Comment | Grayish black vitric lava with minor light brown devitrified microvesicular streaks to 25/1 mm. Scarce to rare feldspar; mafics not observed but very difficult to recognize against dark matrix. Black biotite observed in a single 2.5 mm very pale orange devitrified lithic. 775 g sent to D. A. Sawyer for Ar/Ar dating. |
|---|
Location
| Latitude | 37.4247 |
|---|
| Longitude | -116.043 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 14.99 |
|
15 |
14.98 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 12.96 | | WT% | XRF |
| BAO | 590.283 | | PPM | XRF |
| BA | 528.7 | | PPM | XRF |
| CAO | 1.144 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 1.83 | | WT% | XRF |
| K2O | 4.896 | | WT% | XRF |
| LOI | 4.2 | | WT% | XRF |
| MGO | 0.2598 | | WT% | XRF |
| MNO | 0.0546 | | WT% | XRF |
| MN | 0.0423 | | WT% | XRF |
| NA2O | 3.314 | | WT% | XRF |
| NB2O5 | 47.0215 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.0334 | | WT% | XRF |
| RB2O | 226.701 | | PPM | XRF |
| SIO2 | 70.39 | | WT% | XRF |
| SRO | 166.863 | | PPM | XRF |
| TIO2 | 0.2015 | | WT% | XRF |
| TOTAL | 99.28 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 53.768 | | PPM | XRF |
| ZNO | 78.8157 | | PPM | XRF |
| ZN | 63.32 | | PPM | XRF |
| ZRO2 | 394.163 | | PPM | XRF |
| ZR | 291.8 | | PPM | XRF |
