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Sample 86L-38A
NavDat sample number 46016 · PYROCLASTIC FALL
Sample
| Sample ID | 86L-38A |
|---|
| Rock name | PYROCLASTIC FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.898 |
|---|
| Longitude | -106.928 |
|---|
| Location | Nelson Creek jeep trail, west side |
|---|
| State / province | COLORADO |
|---|
| Formation | Bachelor Caldera Cycle, Intracaldera Bachelor Member |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27.35 |
|
27.25 |
27.45 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 74.4032 | | WT% | XRF |
| TIO2 | 0.278239 | | WT% | XRF |
| AL2O3 | 14.2211 | | WT% | XRF |
| FE2O3 | 2.34958 | | WT% | XRF |
| MGO | 0.63892 | | WT% | XRF |
| CAO | 0.525563 | | WT% | XRF |
| NA2O | 0.649225 | | WT% | XRF |
| K2O | 6.7911 | | WT% | XRF |
| P2O5 | 0.0721361 | | WT% | XRF |
| MNO | 0.0309155 | | WT% | XRF |
| LOI | 2.96 | | WT% | XRF |
| TOTAL | 99.96 | | WT% | XRF |
| ZN | 48 | | PPM | XRF |
| SR | 83 | | PPM | XRF |
| Y | 22 | | PPM | XRF |
| PB | 20 | | PPM | XRF |
| TH | 19 | | PPM | XRF |
| BA | 600 | | PPM | XRF |
| LA | 57 | | PPM | XRF |
| CE | 98 | | PPM | XRF |
| CU | 3 | | PPM | XRF |
| GA | 15 | | PPM | XRF |
