Sample SA?40
NavDat sample number 12271 · TUFF
Sample
| Sample ID | SA?40 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | El Matadero tuff |
Location
| Latitude | 29 |
|---|---|
| Longitude | -103.833 |
| Location | hil across arroyo from La Boquilla |
| State / province | Chihuahua |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 33.5 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74.42 | WT% | XRF | |
| TIO2 | 0.42 | WT% | XRF | |
| AL2O3 | 12.77 | WT% | XRF | |
| FE2O3 | 0.19 | WT% | XRF | |
| FEO | 1.6 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | 0.13 | WT% | XRF | |
| CAO | 1.05 | WT% | XRF | |
| NA2O | 3.45 | WT% | XRF | |
| K2O | 5.86 | WT% | XRF | |
| P2O5 | 0.07 | WT% | XRF | |
| LOI | 1.49 | WT% | XRF | |
| TOTAL | 99.39 | WT% | XRF | |
| NI | 2 | PPM | MS-ID | |
| RB | 187 | PPM | MS-ID | |
| SR | 79 | PPM | MS-ID | |
| Y | 55 | PPM | MS-ID | |
| ZR | 501 | PPM | MS-ID | |
| NB | 33 | PPM | MS-ID | |
| PB | 25 | PPM | MS-ID | |
| TH | 13.5 | PPM | MS-ID |