← Search
Sample 145
NavDat sample number 87989 · RHYODACITE
Sample
| Sample ID | 145 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Collected by | Hildreth and others |
|---|
| Comment | Intrusive felsite pod |
|---|
Location
| Latitude | 48.8255 |
|---|
| Longitude | -121.835 |
|---|
| Location | Chowder Ridge |
|---|
| State / province | Washington |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.018 |
|
1.01 |
1.026 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 71.6 | | WT% | XRF |
| TIO2 | 0.38 | | WT% | XRF |
| AL2O3 | 15.24 | | WT% | XRF |
| FEOT | 2.02 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.64 | | WT% | XRF |
| CAO | 1.8 | | WT% | XRF |
| NA2O | 4.61 | | WT% | XRF |
| K2O | 3.12 | | WT% | XRF |
| P2O5 | 0.12 | | WT% | XRF |
| LOI | 1.25 | | WT% | XRF |
| TOTAL | 98.01 | | WT% | XRF |
| RB | 69 | | PPM | XRF |
| SR | 245 | | PPM | XRF |
| Y | 18 | | PPM | XRF |
| ZR | 220 | | PPM | XRF |
| BA | 990 | | PPM | XRF |
