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Sample PR95/23
NavDat sample number 85935 · PYROCLASTIC-FALL
Sample
| Sample ID | PR95/23 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Pinkish gray zeolitic nonwelded tuff with common to abundant bronzy biotite; 3 grains black hornblende and 1 grain dark green clinopyroxene observed. Scarce to common felsics; quartz is evident but feldspar is strongly predominant. Rare lithics. |
|---|
Location
| Latitude | 37.0928 |
|---|
| Longitude | -115.958 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 12.95 |
|
13 |
12.9 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 10.47 | | WT% | XRF |
| BAO | 684.067 | | PPM | XRF |
| BA | 612.7 | | PPM | XRF |
| CAO | 1.385 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 1.084 | | WT% | XRF |
| K2O | 3.884 | | WT% | XRF |
| LOI | 8.07 | | WT% | XRF |
| MGO | 0.6351 | | WT% | XRF |
| MNO | 0.0918 | | WT% | XRF |
| MN | 0.0711 | | WT% | XRF |
| NA2O | 1.616 | | WT% | XRF |
| NB2O5 | 43.2878 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.0445 | | WT% | XRF |
| RB2O | 168.85 | | PPM | XRF |
| SIO2 | 71.99 | | WT% | XRF |
| SRO | 263.126 | | PPM | XRF |
| TIO2 | 0.1179 | | WT% | XRF |
| TOTAL | 99.37 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 47.1645 | | PPM | XRF |
| ZNO | 73.9239 | | PPM | XRF |
| ZN | 59.39 | | PPM | XRF |
| ZRO2 | 248.007 | | PPM | XRF |
| ZR | 183.6 | | PPM | XRF |
