Sample N55
NavDat sample number 21678 · TUFF
Sample
| Sample ID | N55 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 28.33 |
|---|---|
| Longitude | -107.87 |
| Location | Tomochic caldera |
| State / province | CHIHUAHUA |
| Formation | Rio Verde tuff, member 1 |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.7 | 31 | 32.4 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.97 | WT% | WET | |
| TIO2 | 0.62 | WT% | WET | |
| AL2O3 | 14.14 | WT% | WET | |
| FE2O3 | 2 | WT% | WET | |
| FEO | 1.04 | WT% | WET | |
| MNO | 0.09 | WT% | WET | |
| MGO | 0.83 | WT% | WET | |
| CAO | 2.38 | WT% | WET | |
| NA2O | 3.96 | WT% | WET | |
| K2O | 2.98 | WT% | WET | |
| H2O_PLUS | 4.69 | WT% | WET | |
| H2O_MINUS | 0.71 | WT% | WET | |
| P2O5 | 0.12 | WT% | WET | |
| CO2 | 0 | WT% | WET | |
| TOTAL | 99.53 | WT% | WET | |
| RB | 206 | PPM | MS-ID | |
| SR | 335 | PPM | MS-ID | |
| Y | 42 | PPM | XRF | |
| ZR | 245 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| SC | 8.9 | PPM | NAA | |
| V | 50 | PPM | NAA | |
| CO | 5.2 | PPM | NAA | |
| ZN | 11 | PPM | NAA | |
| ARSENIC | 5.4 | PPM | NAA | |
| SB | 0.83 | PPM | NAA | |
| CS | 2.1 | PPM | NAA | |
| BA | 1010 | PPM | NAA | |
| LA | 105 | PPM | NAA | |
| CE | 83 | PPM | NAA | |
| SM | 19 | PPM | NAA | |
| SM | 6.19 | PPM | TIMS | |
| ND | 32.5 | PPM | TIMS | |
| EU | 3.3 | PPM | NAA | |
| TB | 2.1 | PPM | NAA | |
| YB | 6.4 | PPM | NAA | |
| LU | 0.94 | PPM | NAA | |
| HF | 7.2 | PPM | NAA | |
| TA | 0.98 | PPM | NAA | |
| TH | 16 | PPM | NAA | |
| U | 6 | PPM | NAA | |
| SR87_SR86 | 0.7053 | TIMS | ||
| ND143_ND144 | 0.51254 | TIMS |