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Sample 100
NavDat sample number 3778 · ANDESITE
Sample
| Sample ID | 100 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 40.4672 |
|---|
| Longitude | -105.894 |
|---|
| Location | top of Mt Richthofen |
|---|
| State / province | Colorado |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27 |
|
26 |
28.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 56.8 | | WT% | XRF |
| TIO2 | 1.4 | | WT% | XRF |
| P2O5 | 0.6 | | WT% | XRF |
| AL2O3 | 17.3 | | WT% | XRF |
| FE2O3 | 3.2 | | WT% | XRF |
| FEO | 4 | | WT% | XRF |
| CAO | 4.9 | | WT% | XRF |
| MGO | 2 | | WT% | XRF |
| NA2O | 3.8 | | WT% | XRF |
| K2O | 4.5 | | WT% | XRF |
| H2O | 1.2 | | WT% | XRF |
| TOTAL | 99.7 | | WT% | XRF |
