Sample M331
NavDat sample number 12293 · TUFF
Sample
| Sample ID | M331 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | La Cuesta tuff - part devit |
Location
| Latitude | 28.8333 |
|---|---|
| Longitude | -104 |
| Location | 3.5km SE of Las Cuesta |
| State / province | Chihuahua |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 29.8 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.67 | WT% | XRF | |
| TIO2 | 0.29 | WT% | XRF | |
| AL2O3 | 13.31 | WT% | XRF | |
| FE2O3 | 0.28 | WT% | XRF | |
| FEO | 1.42 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | 0.21 | WT% | XRF | |
| CAO | 1.04 | WT% | XRF | |
| NA2O | 3.37 | WT% | XRF | |
| K2O | 6.28 | WT% | XRF | |
| P2O5 | 0.09 | WT% | XRF | |
| LOI | 0.89 | WT% | XRF | |
| TOTAL | 100.52 | WT% | XRF | |
| RB | 272 | PPM | MS-ID | |
| SR | 93 | PPM | MS-ID | |
| Y | 59 | PPM | MS-ID | |
| ZR | 273 | PPM | MS-ID | |
| NB | 39 | PPM | MS-ID | |
| PB | 42 | PPM | MS-ID | |
| TH | 23.6 | PPM | MS-ID |