Sample RTD-A
NavDat sample number 12667 · TRACHYANDESITE
Sample
| Sample ID | RTD-A |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 31.2833 |
|---|---|
| Longitude | -105.473 |
| Location | Round Top, Sierra Blanca group |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 47 | 38 | 48 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 52.51 | WT% | PER_COM | |
| TIO2 | 1.28 | WT% | PER_COM | |
| AL2O3 | 17.14 | WT% | PER_COM | |
| FE2O3 | 8.04 | WT% | XRF | |
| MNO | 0.17 | WT% | XRF | |
| MGO | 4.35 | WT% | XRF | |
| CAO | 6 | WT% | XRF | |
| NA2O | 5.23 | WT% | XRF | |
| K2O | 2.55 | WT% | XRF | |
| P2O5 | 0.59 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| RB | 146 | PPM | INAA | |
| SR | 919 | PPM | INAA | |
| Y | 33 | PPM | INAA | |
| ZR | 165 | PPM | INAA | |
| NB | 13 | PPM | INAA | |
| BA | 2406 | PPM | INAA | |
| LA | 27.9 | PPM | INAA | |
| CE | 39 | PPM | INAA | |
| ND | 20.4 | PPM | INAA | |
| SM | 2.6 | PPM | INAA | |
| TH | 8 | PPM | INAA |