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Sample 7H64
NavDat sample number 48550 · ANDESITE
Sample
| Sample ID | 7H64 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | aphanitic; rare plagioclase |
|---|
Location
| Latitude | 43.4768 |
|---|
| Longitude | -114.138 |
|---|
| Location | Little Wood River area |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis Volcanic Group |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 49 |
|
47 |
51 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 57.91 | | WT% | XRF |
| TIO2 | 0.65 | | WT% | XRF |
| AL2O3 | 14.13 | | WT% | XRF |
| FE2O3T | 7.08 | | WT% | XRF |
| MNO | 0.1 | | WT% | XRF |
| MGO | 6.34 | | WT% | XRF |
| CAO | 6.37 | | WT% | XRF |
| NA2O | 3.16 | | WT% | XRF |
| K2O | 2.12 | | WT% | XRF |
| P2O5 | 0.17 | | WT% | XRF |
| LOI | 1.62 | | WT% | XRF |
| TOTAL | 99.65 | | WT% | XRF |
