Sample DM109
NavDat sample number 38188 · TRACHYTE
Sample
| Sample ID | DM109 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 30.67 |
|---|---|
| Longitude | -103.793 |
| Location | upper Star Mountain Formation, roadcut on rte 17 |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 36.8 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 66.34 | WT% | UNKNOWN | |
| TIO2 | 0.44 | WT% | UNKNOWN | |
| AL2O3 | 15.37 | WT% | UNKNOWN | |
| FE2O3 | 0.97 | WT% | UNKNOWN | |
| FEO | 4.02 | WT% | UNKNOWN | |
| MNO | 0.07 | WT% | UNKNOWN | |
| MGO | 0.16 | WT% | UNKNOWN | |
| CAO | 0.5 | WT% | UNKNOWN | |
| NA2O | 4.82 | WT% | UNKNOWN | |
| K2O | 5.57 | WT% | UNKNOWN | |
| P2O5 | 0.05 | WT% | UNKNOWN | |
| TOTAL | 98.31 | WT% | UNKNOWN | |
| SC | 5.33 | PPM | UNKNOWN | |
| CR | 1.98 | PPM | UNKNOWN | |
| SR | 49 | PPM | UNKNOWN | |
| Y | 125 | PPM | UNKNOWN | |
| ZR | 821 | PPM | UNKNOWN | |
| NB | 57 | PPM | UNKNOWN | |
| CS | 1.85 | PPM | UNKNOWN | |
| BA | 155 | PPM | UNKNOWN | |
| LA | 80.7 | PPM | UNKNOWN | |
| CE | 193 | PPM | UNKNOWN | |
| ND | 74.8 | PPM | UNKNOWN | |
| SM | 16.88 | PPM | UNKNOWN | |
| EU | 1.73 | PPM | UNKNOWN | |
| TB | 2.7 | PPM | UNKNOWN | |
| YB | 12.06 | PPM | UNKNOWN | |
| LU | 1.56 | PPM | UNKNOWN | |
| HF | 21.06 | PPM | UNKNOWN | |
| TA | 4.97 | PPM | UNKNOWN | |
| TH | 15.88 | PPM | UNKNOWN | |
| U | 1.74 | PPM | UNKNOWN | |
| PB206_PB204 | 17.88 | UNKNOWN | ||
| PB207_PB204 | 15.47 | UNKNOWN | ||
| PB208_PB204 | 37.79 | UNKNOWN |