Sample 87-DJ-223
NavDat sample number 33975 · TUFF
Sample
| Sample ID | 87-DJ-223 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Elevenmile Canyon caldera |
Location
| Latitude | 39.625 |
|---|---|
| Longitude | -118.25 |
| State / province | Nevada |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 24.5 | 23.8 | 25.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.1 | WT% | WDXRF | |
| AL2O3 | 13.9 | WT% | WDXRF | |
| FEO | 0.41 | WT% | WET | |
| FE2O3 | 1.92 | WT% | WDXRF | |
| MGO | 0.74 | WT% | WDXRF | |
| CAO | 0.5 | WT% | WDXRF | |
| NA2O | 2.79 | WT% | WDXRF | |
| K2O | 4.68 | WT% | WDXRF | |
| TIO2 | 0.32 | WT% | WDXRF | |
| P2O5 | 0.11 | WT% | WDXRF | |
| MNO | 0.04 | WT% | WDXRF | |
| H2O_PLUS | 1.51 | WT% | WET | |
| H2O_MINUS | 1.51 | WT% | WDXRF | |
| CO2 | 0.16 | WT% | WET | |
| TOTAL | 99.69 | WT% | WDXRF | |
| NB | 22 | PPM | EDXRF | |
| RB | 160 | PPM | EDXRF | |
| SR | 172 | PPM | EDXRF | |
| ZR | 210 | PPM | EDXRF | |
| Y | 26 | PPM | EDXRF | |
| BA | 1000 | PPM | EDXRF | |
| CE | 42 | PPM | EDXRF | |
| LA | 31 | PPM | EDXRF | |
| CU | -10 | PPM | EDXRF | |
| NI | -10 | PPM | EDXRF | |
| ZN | 63 | PPM | EDXRF | |
| CR | -20 | PPM | EDXRF |