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Sample 94L-16-B
NavDat sample number 45895 · DACITE
Sample
| Sample ID | 94L-16-B |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.792 |
|---|
| Longitude | -106.817 |
|---|
| State / province | COLORADO |
|---|
| Formation | Rat Creek Caldera Cycle, Dacite of Silver Peak, top of lower flow unit |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.5 |
|
28 |
35 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.86 | | WT% | XRF |
| TIO2 | 0.814764 | | WT% | XRF |
| AL2O3 | 16.1947 | | WT% | XRF |
| FE2O3 | 5.9347 | | WT% | XRF |
| MGO | 1.94135 | | WT% | XRF |
| CAO | 4.48623 | | WT% | XRF |
| NA2O | 3.55076 | | WT% | XRF |
| K2O | 3.933 | | WT% | XRF |
| P2O5 | 0.352059 | | WT% | XRF |
| MNO | 0.120706 | | WT% | XRF |
| LOI | 0.58 | | WT% | XRF |
| TOTAL | 99.19 | | WT% | XRF |
| ZN | 51 | | PPM | XRF |
| RB | 114 | | PPM | XRF |
| SR | 600 | | PPM | XRF |
| Y | 35 | | PPM | XRF |
| ZR | 250 | | PPM | XRF |
| NB | 19 | | PPM | XRF |
| BA | 1100 | | PPM | XRF |
| LA | -30 | | PPM | XRF |
| CE | 61 | | PPM | XRF |
| CU | 43 | | PPM | XRF |
| CR | -20 | | PPM | XRF |
| NI | -10 | | PPM | XRF |
