← Search
Sample BH91SB-142
NavDat sample number 38388 · ANDESITE
Sample
| Sample ID | BH91SB-142 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Collected by | DONNELLY-NOLAN, JULIE |
|---|
| Comment | Extrusive rock Porph/fine-gr Plag dom/no Q |
|---|
Location
| Latitude | 39.2164 |
|---|
| Longitude | -121.84 |
|---|
| Location | WEST BUTTE ANDESITE DOME |
|---|
| State / province | California |
|---|
| Volcanic field | Sutter Buttes volcanics |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.56 |
|
1.36 |
1.59 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 59.6 | | WT% | XRF |
| AL2O3 | 17 | | WT% | XRF |
| MGO | 4.22 | | WT% | XRF |
| CAO | 5.86 | | WT% | XRF |
| NA2O | 3.88 | | WT% | XRF |
| K2O | 2.12 | | WT% | XRF |
| TIO2 | 0.54 | | WT% | XRF |
| P2O5 | 0.22 | | WT% | XRF |
| MNO | 0.08 | | WT% | XRF |
| FE2O3T | 4.96 | | WT% | XRF |
| TOTAL | 98.48 | | WT% | XRF |
