Sample s_1220
NavDat sample number 33823 · RHYODACITE
Sample
| Sample ID | s_1220 |
|---|---|
| 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 | 70.6 | WT% | XRF | |
| TIO2 | 0.42 | WT% | XRF | |
| AL2O3 | 14.5 | WT% | XRF | |
| FE2O3T | 2.72 | WT% | XRF | |
| CAO | 2.12 | WT% | XRF | |
| MGO | 0.77 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| K2O | 2.68 | WT% | AES | |
| NA2O | 4.86 | WT% | AES | |
| P2O5 | 0.09 | WT% | XRF | |
| LOI | 1.71 | WT% | IGN | |
| LA | 18 | PPM | INAA | |
| CE | 34 | PPM | INAA | |
| ND | 16 | PPM | INAA | |
| SM | 3.4 | PPM | INAA | |
| EU | 0.78 | PPM | INAA | |
| TB | 0.52 | PPM | INAA | |
| YB | 1.9 | PPM | INAA | |
| LU | 0.29 | PPM | INAA | |
| SC | 6.98 | PPM | INAA | |
| CR | 3.8 | PPM | INAA | |
| CO | 5.3 | PPM | INAA | |
| ZN | 43 | PPM | INAA | |
| RB | 62 | PPM | XRF | |
| SR | 266 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 208 | PPM | XRF | |
| NB | 6.4 | PPM | ICPMS | |
| CS | 3.5 | PPM | INAA | |
| BA | 834 | PPM | XRF | |
| HF | 4.8 | PPM | INAA | |
| TA | 0.46 | PPM | INAA | |
| TH | 4.8 | PPM | INAA | |
| U | 1.9 | PPM | INAA |