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Sample [NO NAME]
NavDat sample number 12111 · TUFF
Sample
| Sample ID | [NO NAME] |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | average of 9 analyses of intracaldera tuffs of Twin Peaks caldera |
|---|
Location
| Latitude | 44.5 |
|---|
| Longitude | -114.75 |
|---|
| Location | Challis volcanic field; Twin Peaks caldera |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis volcanic field, Twin Peaks caldera, Tuff of Challis Creek |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 46 |
|
45 |
48 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 75.33 | | WT% | XRF |
| AL2O3 | 12.08 | | WT% | XRF |
| FE2O3 | 1.43 | | WT% | XRF |
| FEO | 0.18 | | WT% | XRF |
| MGO | 0.08 | | WT% | XRF |
| CAO | 0.26 | | WT% | XRF |
| NA2O | 3.08 | | WT% | XRF |
| K2O | 5.1 | | WT% | XRF |
| H2O_PLUS | 0.51 | | WT% | XRF |
| H2O_MINUS | 0.47 | | WT% | XRF |
| TIO2 | 0.13 | | WT% | XRF |
| P2O5 | 0 | | WT% | XRF |
| MNO | 0.01 | | WT% | XRF |
| CO2 | 0 | | WT% | XRF |
| TOTAL | 98.66 | | WT% | XRF |
