← Search
Sample BC105
NavDat sample number 6838 · PHONOLITE
Sample
| Sample ID | BC105 |
|---|
| Rock name | PHONOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | holocrystalline; aphanitic groundmass of analcime, sanidine, aegirine, calcite, hematite, limonite; phenocrysts of sanidine, anorthoclase, aegirine-augite, analcime, nosean |
|---|
Location
| Latitude | 44.6573 |
|---|
| Longitude | -104.764 |
|---|
| Location | Barlow Canyon |
|---|
| State / province | Wyoming |
|---|
| Volcanic field | Barlow Canyon phonolite |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 50.9 |
|
49.2 |
52.6 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 58.44 | | WT% | XRF |
| AL2O3 | 21.9 | | WT% | XRF |
| FE2O3 | 1.76 | | WT% | XRF |
| FEO | 1.64 | | WT% | XRF |
| MGO | 0.54 | | WT% | XRF |
| CAO | 3 | | WT% | XRF |
| NA2O | 6.64 | | WT% | EPMA |
| K2O | 5.34 | | WT% | XRF |
| TIO2 | 0.26 | | WT% | XRF |
| P2O5 | 0.05 | | WT% | XRF |
| MNO | 0.2 | | WT% | XRF |
