Sample s_1220G
NavDat sample number 33847 · RHYODACITE
Sample
| Sample ID | s_1220G |
|---|---|
| Rock name | RHYODACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 42.84 |
|---|---|
| Longitude | -122.09 |
| Location | CASCADES / HIGH CASCADES / NORTHWESTERN CASCADES / MOUNT MAZAMA / PACIFIC OCEAN |
| State / province | OREGON |
| Location comment | CRATER LAKE, CRATER PEAK |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.47 | 0.459 | 0.477 | QUATERNARY |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.3 | WT% | XRF | |
| TIO2 | 0.27 | WT% | XRF | |
| AL2O3 | 12.6 | WT% | XRF | |
| FE2O3T | 1.42 | WT% | XRF | |
| CAO | 0.94 | WT% | XRF | |
| MGO | 0.24 | WT% | XRF | |
| MNO | 0.02 | WT% | XRF | |
| K2O | 3.41 | WT% | AES | |
| NA2O | 4.63 | WT% | AES | |
| P2O5 | 0 | WT% | XRF | |
| LOI | 1.03 | WT% | IGN | |
| LA | 21 | PPM | INAA | |
| CE | 40 | PPM | INAA | |
| ND | 17 | PPM | INAA | |
| SM | 3.8 | PPM | INAA | |
| EU | 0.52 | PPM | INAA | |
| TB | 0.54 | PPM | INAA | |
| YB | 2.5 | PPM | INAA | |
| LU | 0.36 | PPM | INAA | |
| SC | 4.18 | PPM | INAA | |
| CO | 1.6 | PPM | INAA | |
| ZN | 30 | PPM | INAA | |
| RB | 70 | PPM | XRF | |
| SR | 119 | PPM | XRF | |
| Y | 23 | PPM | XRF | |
| ZR | 218 | PPM | XRF | |
| NB | 8.1 | PPM | ICPMS | |
| CS | 4 | PPM | INAA | |
| BA | 891 | PPM | XRF | |
| HF | 5.9 | PPM | INAA | |
| TA | 0.59 | PPM | INAA | |
| TH | 6.7 | PPM | INAA | |
| U | 2.7 | PPM | INAA |