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Sample MH74A1
NavDat sample number 85648
Sample
| Sample ID | MH74A1 |
|---|
| Material | notfound |
|---|
| Comment | Yellowish brown devitrified moderately welded tuff with common pumice to 9/1mm, mostly with white vapor phase interiors. Common to abundant felsics include very conspicuous quartz. Common biotite, mostly black, some altered to bronze. Scarce lithics to 4 mm. |
|---|
Location
| Latitude | 37.5662 |
|---|
| Longitude | -116.039 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 18.25 |
|
18.4 |
18.1 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 12.7 | | WT% | XRF |
| BAO | 462.893 | | PPM | XRF |
| BA | 414.6 | | PPM | XRF |
| CAO | 1.09 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 0.8435 | | WT% | XRF |
| K2O | 5.447 | | WT% | XRF |
| LOI | 1.19 | | WT% | XRF |
| MGO | 0.1693 | | WT% | XRF |
| MNO | 0.0262 | | WT% | XRF |
| MN | 0.0203 | | WT% | XRF |
| NA2O | 2.738 | | WT% | XRF |
| NB2O5 | 30.6133 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | | | WT% | XRF |
| RB2O | 183.723 | | PPM | XRF |
| SIO2 | 75.23 | | WT% | XRF |
| SRO | 269.276 | | PPM | XRF |
| TIO2 | 0.111 | | WT% | XRF |
| TOTAL | 99.53 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 8.1706 | | PPM | XRF |
| ZNO | 36.3085 | | PPM | XRF |
| ZN | 29.17 | | PPM | XRF |
| ZRO2 | 151.425 | | PPM | XRF |
| ZR | 112.1 | | PPM | XRF |
