Sample SA?99
NavDat sample number 12289 · DACITE
Sample
| Sample ID | SA?99 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | San Antonio dacite - vit |
Location
| Latitude | 29 |
|---|---|
| Longitude | -104.667 |
| Location | streambed 1.5km W of San Antonio |
| State / province | Chihuahua |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 32 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 66.36 | WT% | XRF | |
| TIO2 | 0.97 | WT% | XRF | |
| AL2O3 | 14.85 | WT% | XRF | |
| FE2O3 | 0.87 | WT% | XRF | |
| FEO | 4.34 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| MGO | 1.05 | WT% | XRF | |
| CAO | 2.67 | WT% | XRF | |
| NA2O | 3.79 | WT% | XRF | |
| K2O | 4.67 | WT% | XRF | |
| P2O5 | 0.31 | WT% | XRF | |
| LOI | 1.88 | WT% | XRF | |
| TOTAL | 100.27 | WT% | XRF | |
| RB | 230 | PPM | MS-ID | |
| SR | 247 | PPM | MS-ID | |
| Y | 60 | PPM | MS-ID | |
| ZR | 537 | PPM | MS-ID | |
| NB | 45 | PPM | MS-ID | |
| PB | 35 | PPM | MS-ID | |
| TH | 15 | PPM | MS-ID |