Sample S-175B
NavDat sample number 1350 · DACITE
Sample
| Sample ID | S-175B |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.8458 |
|---|---|
| Longitude | -106.994 |
| Location | Flow, SE L Humphreys Ratte & S, 1967; Lipman. 1987 |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27 | 26.9 | 27.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 60.32 | WT% | XRF | |
| TIO2 | 0.88 | WT% | XRF | |
| AL2O3 | 17.24 | WT% | XRF | |
| FE2O3 | 6.23 | WT% | XRF | |
| MGO | 1.7 | WT% | XRF | |
| CAO | 5.65 | WT% | XRF | |
| NA2O | 3.88 | WT% | XRF | |
| K2O | 3.67 | WT% | XRF | |
| P2O5 | 0.39 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| LOI | 1.73 | WT% | XRF | |
| TOTAL | 100.06 | WT% | XRF | |
| RB | 110 | PPM | XRF | |
| SR | 748 | PPM | XRF | |
| Y | 17 | PPM | XRF | |
| ZR | 236 | PPM | XRF | |
| NB | 11 | PPM | XRF | |
| BA | 1390 | PPM | INAA | |
| LA | 43 | PPM | INAA | |
| CE | 103 | PPM | INAA | |
| ND | 47 | PPM | INAA | |
| SM | 7.8 | PPM | INAA | |
| EU | 2 | PPM | INAA | |
| GD | 5 | PPM | INAA | |
| TB | 0.93 | PPM | INAA | |
| YB | 2.4 | PPM | INAA | |
| LU | 0.41 | PPM | INAA |