Sample s_1221
NavDat sample number 33819 · RHYODACITE
Sample
| Sample ID | s_1221 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 42.95 |
|---|---|
| Longitude | -121.94 |
| Location | CASCADES / HIGH CASCADES / NORTHWESTERN CASCADES / MOUNT MAZAMA / PACIFIC OCEAN |
| State / province | OREGON |
| Location comment | CRATER LAKE, POTHOLE BUTTE |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.45 | 0.448 | 0.456 | QUATERNARY |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69.6 | WT% | XRF | |
| TIO2 | 0.45 | WT% | XRF | |
| AL2O3 | 14.8 | WT% | XRF | |
| FE2O3T | 2.7 | WT% | XRF | |
| CAO | 2.06 | WT% | XRF | |
| MGO | 0.71 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| K2O | 2.6 | WT% | AES | |
| NA2O | 4.78 | WT% | AES | |
| P2O5 | 0.09 | WT% | XRF | |
| LOI | 2.58 | WT% | IGN | |
| LA | 19 | PPM | INAA | |
| CE | 38 | PPM | INAA | |
| ND | 18 | PPM | INAA | |
| SM | 4 | PPM | INAA | |
| EU | 0.81 | PPM | INAA | |
| TB | 0.58 | PPM | INAA | |
| YB | 2.5 | PPM | INAA | |
| LU | 0.37 | PPM | INAA | |
| SC | 5.81 | PPM | INAA | |
| CO | 2.6 | PPM | INAA | |
| ZN | 46 | PPM | INAA | |
| RB | 51 | PPM | XRF | |
| SR | 278 | PPM | XRF | |
| Y | 25 | PPM | XRF | |
| ZR | 236 | PPM | XRF | |
| NB | 6.4 | PPM | ICPMS | |
| CS | 3.1 | PPM | INAA | |
| BA | 874 | PPM | XRF | |
| HF | 6 | PPM | INAA | |
| TA | 0.53 | PPM | INAA | |
| TH | 5.6 | PPM | INAA | |
| U | 2.2 | PPM | INAA |