Sample SJ85-3
NavDat sample number 45893 · DACITE
Sample
| Sample ID | SJ85-3 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.892 |
|---|---|
| Longitude | -106.976 |
| Location | McKenzie Mountain |
| State / province | COLORADO |
| Formation | Rat Creek Caldera Cycle, dacite of McKenzie Mountain |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.5 | 28 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63.71 | WT% | XRF | |
| TIO2 | 0.675479 | WT% | XRF | |
| AL2O3 | 15.8533 | WT% | XRF | |
| FE2O3 | 5.79275 | WT% | XRF | |
| MGO | 1.93433 | WT% | XRF | |
| CAO | 4.43155 | WT% | XRF | |
| NA2O | 3.48998 | WT% | XRF | |
| K2O | 3.65373 | WT% | XRF | |
| P2O5 | 0.296802 | WT% | XRF | |
| MNO | 0.0921108 | WT% | XRF | |
| LOI | 2.29 | WT% | XRF | |
| TOTAL | 99.93 | WT% | XRF | |
| ZN | 57 | PPM | XRF | |
| RB | 116 | PPM | XRF | |
| SR | 628 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| ZR | 170 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| PB | 26 | PPM | XRF | |
| CU | 7 | PPM | XRF | |
| NI | 27 | PPM | XRF | |
| RB | 104 | PPM | INAA | |
| BA | 870 | PPM | INAA | |
| SR | 623 | PPM | INAA | |
| TH | 11 | PPM | INAA | |
| U | 3.62 | PPM | INAA | |
| LA | 39.5 | PPM | INAA | |
| CE | 79.65 | PPM | INAA | |
| ND | 35.5 | PPM | INAA | |
| SM | 6.75 | PPM | INAA | |
| EU | 1.53 | PPM | INAA | |
| GD | 5.78 | PPM | INAA | |
| TB | 0.72 | PPM | INAA | |
| TM | 0.431 | PPM | INAA | |
| YB | 2.14 | PPM | INAA | |
| LU | 0.32 | PPM | INAA | |
| TA | 0.911 | PPM | INAA | |
| ZR | 171 | PPM | INAA | |
| HF | 5.42 | PPM | INAA | |
| SB | 0.252 | PPM | INAA | |
| SC | 9.53 | PPM | INAA | |
| CR | 9.15 | PPM | INAA | |
| CO | 11.6 | PPM | INAA | |
| NI | 10.9 | PPM | INAA | |
| ZN | 78.7 | PPM | INAA |