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Sample BH91SB-76
NavDat sample number 38375 · ANDESITE
Sample
| Sample ID | BH91SB-76 |
|---|
| 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 | 39.2447 |
|---|
| Longitude | -121.817 |
|---|
| Location | CAT ROCK 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 | 62.7 | | WT% | XRF |
| AL2O3 | 17.8 | | WT% | XRF |
| MGO | 1.93 | | WT% | XRF |
| CAO | 4.6 | | WT% | XRF |
| NA2O | 4.48 | | WT% | XRF |
| K2O | 2.35 | | WT% | XRF |
| TIO2 | 0.39 | | WT% | XRF |
| P2O5 | 0.18 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| FE2O3T | 3.73 | | WT% | XRF |
| TOTAL | 98.23 | | WT% | XRF |
