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Sample 94L-16-A
NavDat sample number 45894 · DACITE
Sample
| Sample ID | 94L-16-A |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.794 |
|---|
| Longitude | -106.818 |
|---|
| State / province | COLORADO |
|---|
| Formation | Rat Creek Caldera Cycle, Dacite of Silver Peak, base of upper 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 | 61.7 | | WT% | XRF |
| TIO2 | 0.809233 | | WT% | XRF |
| AL2O3 | 15.78 | | WT% | XRF |
| FE2O3 | 5.96809 | | WT% | XRF |
| MGO | 2.04331 | | WT% | XRF |
| CAO | 4.66321 | | WT% | XRF |
| NA2O | 3.54039 | | WT% | XRF |
| K2O | 4.0664 | | WT% | XRF |
| P2O5 | 0.364155 | | WT% | XRF |
| MNO | 0.101154 | | WT% | XRF |
| LOI | 1.13 | | WT% | XRF |
| TOTAL | 99.04 | | WT% | XRF |
| ZN | 50 | | PPM | XRF |
| RB | 110 | | PPM | XRF |
| SR | 630 | | PPM | XRF |
| Y | 22 | | PPM | XRF |
| ZR | 235 | | PPM | XRF |
| NB | 16 | | PPM | XRF |
| BA | 1000 | | PPM | XRF |
| LA | -30 | | PPM | XRF |
| CE | 58 | | PPM | XRF |
| CU | 31 | | PPM | XRF |
| CR | -20 | | PPM | XRF |
| NI | -10 | | PPM | XRF |
