← Search
Sample 7H109
NavDat sample number 48555 · DACITE
Sample
| Sample ID | 7H109 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | abundant plag and lesser biotite, hbl, and pyroxene |
|---|
Location
| Latitude | 43.5928 |
|---|
| Longitude | -114.039 |
|---|
| 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 | 64.83 | | WT% | XRF |
| TIO2 | 0.5 | | WT% | XRF |
| AL2O3 | 14.51 | | WT% | XRF |
| FE2O3T | 4.79 | | WT% | XRF |
| MNO | 0.08 | | WT% | XRF |
| MGO | 2.15 | | WT% | XRF |
| CAO | 2.86 | | WT% | XRF |
| NA2O | 3.28 | | WT% | XRF |
| K2O | 3.79 | | WT% | XRF |
| P2O5 | 0.18 | | WT% | XRF |
| LOI | 2.51 | | WT% | XRF |
| TOTAL | 99.48 | | WT% | XRF |
