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Sample H-9-26A
NavDat sample number 8950 · RHYOLITE
Sample
| Sample ID | H-9-26A |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | BLACK RHYOLITE COMPOSED OF SANIDINE, PLAGIOCLASE, PYROXENE, AND OXIDE PHENOCRYSTS IN A MATRIX OF PERLITIC GLASS |
|---|
Location
| Latitude | 42.1292 |
|---|
| Longitude | -117.3 |
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| Location | black silicic material underlying white/tan silicic material at Anderson Crossing, Little Owyhee River |
|---|
| State / province | Oregon |
|---|
| Volcanic field | Western Snake River Plain |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 13.07 |
|
12.48 |
13.66 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.32 | | WT% | XRF |
| TIO2 | 0.54 | | WT% | XRF |
| AL2O3 | 13.09 | | WT% | XRF |
| FE2O3 | 2.41 | | WT% | XRF |
| FEO | 1.28 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| MGO | 0.49 | | WT% | XRF |
| CAO | 1.49 | | WT% | XRF |
| NA2O | 3.18 | | WT% | XRF |
| K2O | 5.21 | | WT% | XRF |
| P2O5 | 0.11 | | WT% | XRF |
| LOI | 3.73 | | WT% | XRF |
| TOTAL | 100.9 | | WT% | XRF |
| RB | 184 | | PPM | XRF |
| SR | 94 | | PPM | XRF |
| BA | 1256 | | PPM | XRF |
| ZR | 471 | | PPM | XRF |
| V | 31 | | PPM | XRF |
| Y | 74 | | PPM | XRF |
