Sample LM20a
NavDat sample number 12654
Sample
| Sample ID | LM20a |
|---|---|
| Rock type | PLUTONIC |
| Material | IGNEOUS |
| Comment | phototephrite intrusion |
Location
| Latitude | 29.35 |
|---|---|
| Longitude | -103.567 |
| Location | 30m above base of Leon Mountain, Terlingua area |
| 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 | 50.57 | WT% | XRF | |
| TIO2 | 2.06 | WT% | XRF | |
| AL2O3 | 18.41 | WT% | XRF | |
| FE2O3 | 9.97 | WT% | XRF | |
| FEOT | 8.97 | WT% | XRF | |
| MNO | 0.2 | WT% | XRF | |
| MGO | 2.16 | WT% | XRF | |
| CAO | 6.6 | WT% | XRF | |
| NA2O | 6.08 | WT% | XRF | |
| K2O | 3.13 | WT% | XRF | |
| P2O5 | 0.81 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| SC | 10 | PPM | MS-ID | |
| V | 33 | PPM | MS-ID | |
| NI | 4 | PPM | MS-ID | |
| RB | 56 | PPM | MS-ID | |
| SR | 1168 | PPM | MS-ID | |
| Y | 29 | PPM | MS-ID | |
| ZR | 296 | PPM | MS-ID | |
| BA | 1167 | PPM | MS-ID | |
| LA | 66 | PPM | MS-ID |