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Sample May-54
NavDat sample number 16030 · PYROCLASTIC-FALL
Sample
| Sample ID | May-54 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | inner ignimbrites |
Location
| Latitude | 32.9667 |
|---|
| Longitude | -114.658 |
|---|
| Location | Picacho region,Chocolate Mtns |
|---|
| State / province | California |
|---|
| Volcanic field | Inner Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 24 |
|
21 |
27 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 71.82 | | WT% | XRF |
| TIO2 | 0.21 | | WT% | XRF |
| AL2O3 | 15.5 | | WT% | XRF |
| FEO | 1.38 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| MGO | 0.66 | | WT% | XRF |
| CAO | 1.34 | | WT% | XRF |
| NA2O | 3.28 | | WT% | XRF |
| K2O | 5.14 | | WT% | XRF |
| TOTAL | 99.38 | | WT% | XRF |