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Sample MAD-240
NavDat sample number 36757 · RHYOLITE
Sample
| Sample ID | MAD-240 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
Location
| Latitude | 37.707 |
|---|
| Longitude | -106.646 |
|---|
| Location | Alder Cr Guard Station |
|---|
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 28.35 |
|
28.2 |
28.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 63.06 | | WT% | XRF |
| TIO2 | 0.773193 | | WT% | XRF |
| AL2O3 | 15.9659 | | WT% | XRF |
| FE2O3 | 5.5931 | | WT% | XRF |
| MGO | 1.80746 | | WT% | XRF |
| CAO | 4.65924 | | WT% | XRF |
| NA2O | 3.50447 | | WT% | XRF |
| K2O | 3.49443 | | WT% | XRF |
| P2O5 | 0.331368 | | WT% | XRF |
| MNO | 0.0903732 | | WT% | XRF |
| LOI | 0.41 | | WT% | XRF |
| TOTAL | 99.28 | | WT% | XRF |
| ZN | 53 | | PPM | XRF |
| RB | 72 | | PPM | XRF |
| SR | 590 | | PPM | XRF |
| Y | 26 | | PPM | XRF |
| ZR | 170 | | PPM | XRF |
| NB | 14 | | PPM | XRF |
| BA | 850 | | PPM | XRF |
| LA | -30 | | PPM | XRF |
| CE | 66 | | PPM | XRF |
| V | 20 | | PPM | XRF |
| CR | -20 | | PPM | XRF |
| NI | -10 | | PPM | XRF |