Sample 255
NavDat sample number 8616 · PYROCLASTIC FALL
Sample
| Sample ID | 255 |
|---|---|
| Alternate ID | 1436 |
| Rock name | PYROCLASTIC FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Aphyric |
Location
| Latitude | 20.7028 |
|---|---|
| Longitude | -103.425 |
| Location | Arroyo south of A. Milpa Alta, 1 km NW of Univ. Agric. De Guadalajara |
| State / province | Jalisco |
| Location comment | Tala Tuff |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.1 | 0.085 | 0.105 |
Analyses
Mineral
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| TIO2 | 0.08 | WT% | WET | |
| AL2O3 | 11.45 | WT% | WET | |
| FE2O3 | 1.23 | WT% | WET | |
| FEO | 0.54 | WT% | WET | |
| MNO | 0.04 | WT% | WET | |
| MGO | 0.04 | WT% | WET | |
| CAO | 0.14 | WT% | WET | |
| NA2O | 4.37 | WT% | FPHOT | |
| K2O | 4.6 | WT% | FPHOT | |
| H2O_PLUS | 3.58 | WT% | PENFIELD | |
| F | 0.09 | WT% | SIE | |
| CL | 0.17 | WT% | SIE | |
| S | 26.07 | UNKNOWN | ||
| SUMA_100 | 73.93 | WT% | UNKNOWN | |
| SC | 0.42 | PPM | INAA | |
| CO | 0.4 | PPM | INAA | |
| ZN | 168 | PPM | XRF | |
| RB | 263 | PPM | XRF | |
| Y | 115 | PPM | XRF | |
| ZR | 575 | PPM | XRF | |
| NB | 109 | PPM | XRF | |
| SB | 0.7 | PPM | INAA | |
| CS | 6.6 | PPM | INAA | |
| LA | 37 | PPM | INAA | |
| CE | 88 | PPM | INAA | |
| ND | 44 | PPM | INAA | |
| SM | 11.7 | PPM | INAA | |
| EU | 0.06 | PPM | INAA | |
| GD | 11.8 | PPM | INAA | |
| TB | 2.36 | PPM | INAA | |
| TM | 1.43 | PPM | INAA | |
| YB | 10 | PPM | INAA | |
| LU | 1.35 | PPM | INAA | |
| HF | 19.8 | PPM | INAA | |
| TA | 7.02 | PPM | INAA | |
| PB | 37 | PPM | XRF | |
| TH | 25.8 | PPM | INAA | |
| U | 11.4 | PPM | INAA |