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Sample MH19B3
NavDat sample number 85647 · TUFF
Sample
| Sample ID | MH19B3 |
|---|
| Rock name | TUFF |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | Sampled near topmost part of ash flow, here devitrified and pumice-rich, about 5 m down from eroded top. Pumices have common Na-mafics in devitrified groundmass. Some fresh green Fe-rich clinopyroxene, but fairly common olivine, estimated at 0.5% is widely altered. Abundant alkali feldspar and quartz. Two bags collected for possible mineral separation. |
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Location
| Latitude | 37.3238 |
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| Longitude | -116.258 |
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| State / province | NEVADA |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 13.5 |
|
13.55 |
13.45 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AS2O3 | 6.5029 | | PPM | NAA |
| AU | 0.0016 | | PPM | NAA |
| BAO | 25.0538 | | PPM | NAA |
| BA | 22.44 | | PPM | NAA |
| CAO | 0.6506 | | WT% | NAA |
| CE2O3 | 201.693 | | PPM | NAA |
| COO | 1.1785 | | PPM | NAA |
| CR2O3 | 5.8736 | | PPM | NAA |
| CR | 4.019 | | PPM | NAA |
| CS2O | 3.1138 | | PPM | NAA |
| EU2O3 | 0.3432 | | PPM | NAA |
| FE2O3 | 2.745 | | WT% | NAA |
| GD2O3 | 18.6088 | | PPM | NAA |
| HFO2 | 26.6964 | | PPM | NAA |
| HO2O3 | 4.133 | | PPM | NAA |
| K2O | 4.541 | | WT% | NAA |
| LA2O3 | 93.5276 | | PPM | NAA |
| LU2O3 | 1.5261 | | PPM | NAA |
| NA2O | 4.057 | | WT% | NAA |
| ND2O3 | 93.7279 | | PPM | NAA |
| NIO | 4.1297 | | PPM | NAA |
| NI | 3.245 | | PPM | NAA |
| RB2O | 236.762 | | PPM | NAA |
| SB2O3 | 0.6463 | | PPM | NAA |
| SC2O3 | 2.073 | | PPM | NAA |
| SM2O3 | 21.3819 | | PPM | NAA |
| SRO | 29.9314 | | PPM | NAA |
| TA2O5 | 6.6357 | | PPM | NAA |
| TB2O3 | 2.9793 | | PPM | NAA |
| THO2 | 29.903 | | PPM | NAA |
| TM2O3 | 1.7856 | | PPM | NAA |
| UO2 | 5.8422 | | PPM | NAA |
| WO3 | 2.7981 | | PPM | NAA |
| YB2O3 | 10.6582 | | PPM | NAA |
| ZNO | 261.889 | | PPM | NAA |
| ZN | 210.4 | | PPM | NAA |
| ZRO2 | 1384.57 | | PPM | NAA |
| ZR | 1025 | | PPM | NAA |
| AL2O3 | 10.93 | | WT% | XRF |
| BAO | 63.5165 | | PPM | XRF |
| BA | 56.89 | | PPM | XRF |
| CAO | 0.1836 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| FE2O3 | 2.864 | | WT% | XRF |
| K2O | 4.456 | | WT% | XRF |
| LOI | 0.37 | | WT% | XRF |
| MGO | | | WT% | XRF |
| MNO | 0.1111 | | WT% | XRF |
| MN | 0.086 | | WT% | XRF |
| NA2O | 4.041 | | WT% | XRF |
| NB2O5 | 132.024 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.0728 | | WT% | XRF |
| RB2O | 245.511 | | PPM | XRF |
| SIO2 | 77.65 | | WT% | XRF |
| SRO | 9.8971 | | PPM | XRF |
| TIO2 | 0.1282 | | WT% | XRF |
| TOTAL | 101 | | WT% | XRF |
| V2O3 | | | PPM | XRF |
| Y2O3 | 132.579 | | PPM | XRF |
| ZNO | 296.866 | | PPM | XRF |
| ZN | 238.5 | | PPM | XRF |
| ZRO2 | 1439.95 | | PPM | XRF |
| ZR | 1066 | | PPM | XRF |
