Sample BB-4
NavDat sample number 12228 · TRACHYANDESITE
Sample
| Sample ID | BB-4 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | trachyandesite |
Location
| Latitude | 29.25 |
|---|---|
| Longitude | -103.375 |
| Location | Ash Spring Basalt, east side of Burro Mesa |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 32 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.08 | WT% | XRF | |
| TIO2 | 1.99 | WT% | XRF | |
| AL2O3 | 17.99 | WT% | XRF | |
| FE2O3 | 0.8 | WT% | XRF | |
| FEO | 6.65 | WT% | XRF | |
| MNO | 0.23 | WT% | XRF | |
| MGO | 2.48 | WT% | XRF | |
| CAO | 4.78 | WT% | XRF | |
| NA2O | 4.57 | WT% | XRF | |
| K2O | 3.73 | WT% | XRF | |
| P2O5 | 0.71 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| V | 36 | PPM | MS-ID | |
| CR | 1.3 | PPM | MS-ID | |
| NI | 4 | PPM | MS-ID | |
| RB | 62 | PPM | MS-ID | |
| SR | 931 | PPM | MS-ID | |
| Y | 49 | PPM | MS-ID | |
| ZR | 552 | PPM | MS-ID | |
| NB | 84 | PPM | MS-ID | |
| BA | 751 | PPM | MS-ID | |
| LA | 58 | PPM | MS-ID | |
| CE | 122 | PPM | MS-ID | |
| ND | 62 | PPM | MS-ID |