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Sample 255
NavDat sample number 7005 · ANDESITE
Sample
| Sample ID | 255 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
Location
| Latitude | 44.5767 |
|---|
| Longitude | -114.311 |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis Volcanic group, andesite undivided |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 49 |
|
48 |
52 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 60.73 | | WT% | XRF |
| AL2O3 | 15.64 | | WT% | XRF |
| TIO2 | 1.02 | | WT% | XRF |
| FE2O3T | 7.82 | | WT% | XRF |
| CAO | 6.34 | | WT% | XRF |
| MGO | 3.09 | | WT% | XRF |
| K2O | 3.66 | | WT% | XRF |
| NA2O | 2.87 | | WT% | XRF |
| MNO | 0.09 | | WT% | XRF |
| P2O5 | 0.26 | | WT% | XRF |