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Sample May-79
NavDat sample number 16014 · PYROCLASTIC-FALL
Sample
| Sample ID | May-79 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | outer ignimbrites |
|---|
Location
| Latitude | 32.9183 |
|---|
| Longitude | -114.582 |
|---|
| Location | Picacho region,Chocolate Mtns |
|---|
| State / province | California |
|---|
| Volcanic field | Picacho Volcanics |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 26.8 |
|
25.2 |
28.4 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.66 | | WT% | XRF |
| TIO2 | 0.12 | | WT% | XRF |
| AL2O3 | 14.06 | | WT% | XRF |
| FEO | 0.84 | | WT% | XRF |
| MNO | 0.06 | | WT% | XRF |
| MGO | 0.63 | | WT% | XRF |
| CAO | 1.85 | | WT% | XRF |
| NA2O | 2.96 | | WT% | XRF |
| K2O | 5.19 | | WT% | XRF |
| TOTAL | 95.37 | | WT% | XRF |
