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Sample 223
NavDat sample number 8581 · PYROCLASTIC-FLOW
Sample
| Sample ID | 223 |
|---|
| Rock name | PYROCLASTIC-FLOW |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 44.3831 |
|---|
| Longitude | -114.796 |
|---|
| Location | Challis volcanic field |
|---|
| State / province | Idaho |
|---|
| Volcanic field | ash-flow tuffs in the Andesites of Bonanza Peak |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 46 |
|
43 |
49 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.18 | | WT% | XRF |
| AL2O3 | 15.7 | | WT% | XRF |
| TIO2 | 0.48 | | WT% | XRF |
| FEO | 1.27 | | WT% | XRF |
| MNO | 0.02 | | WT% | XRF |
| CAO | 1.37 | | WT% | XRF |
| MGO | 0.47 | | WT% | XRF |
| K2O | 4.64 | | WT% | XRF |
| NA2O | 3.49 | | WT% | XRF |
| P2O5 | 0.15 | | WT% | XRF |
| FE2O3 | 1.98 | | WT% | XRF |
| TOTAL | 98.75 | | WT% | XRF |
