← Search
Sample 7H21
NavDat sample number 48557 · TRACHYTE
Sample
| Sample ID | 7H21 |
|---|
| Rock name | TRACHYTE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | abundant plag, biotite and fiamme |
|---|
Location
| Latitude | 43.4044 |
|---|
| Longitude | -113.962 |
|---|
| Location | Little Wood River area |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis Volcanic Group |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 47 |
|
46 |
48 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 62.92 | | WT% | XRF |
| TIO2 | 0.74 | | WT% | XRF |
| AL2O3 | 16.49 | | WT% | XRF |
| FE2O3T | 3.67 | | WT% | XRF |
| MNO | 0.04 | | WT% | XRF |
| MGO | 1.47 | | WT% | XRF |
| CAO | 3.58 | | WT% | XRF |
| NA2O | 3.28 | | WT% | XRF |
| K2O | 4.83 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| LOI | 2.2 | | WT% | XRF |
| TOTAL | 99.47 | | WT% | XRF |
