Sample A42
NavDat sample number 10543 · PYROCLASTIC FALL
Sample
| Sample ID | A42 |
|---|---|
| Rock name | PYROCLASTIC FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 31.9 |
|---|---|
| Longitude | -106.8 |
| Location | Mt. Riley Maar |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 32 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 44.29 | WT% | XRF | |
| TIO2 | 2.41 | WT% | XRF | |
| AL2O3 | 14.82 | WT% | XRF | |
| CR2O3 | 0.04 | WT% | INAA | |
| FEOT | 10.61 | WT% | XRF | |
| MNO | 0.17 | WT% | XRF | |
| MGO | 9.88 | WT% | XRF | |
| CAO | 10.44 | WT% | XRF | |
| NA2O | 2.83 | WT% | INAA | |
| K2O | 1.46 | WT% | XRF | |
| P2O5 | 0.45 | WT% | XRF | |
| H2O_PLUS | 1.48 | WT% | GC | |
| TOTAL | 98.88 | WT% | XRF | |
| SC | 26.6 | PPM | INAA | |
| CR | 276 | PPM | INAA | |
| NI | 180 | PPM | XRF | |
| LA | 29.4 | PPM | INAA | |
| CE | 60 | PPM | INAA | |
| SM | 5.96 | PPM | INAA | |
| EU | 1.96 | PPM | INAA | |
| TB | 0.87 | PPM | INAA | |
| YB | 2.1 | PPM | INAA | |
| LU | 0.31 | PPM | INAA | |
| HF | 4.4 | PPM | INAA | |
| TA | 3.4 | PPM | INAA | |
| TH | 3.6 | PPM | INAA |