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Sample MB-380
NavDat sample number 51685 · IGNIMBRITE
Sample
| Sample ID | MB-380 |
|---|
| Rock name | IGNIMBRITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.8902 |
|---|
| Longitude | -121.534 |
|---|
| Location | Hannegan Peak |
|---|
| State / province | Washington |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 3.811 |
|
3.769 |
3.853 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 75.2 | | WT% | XRF |
| TIO2 | 0.17 | | WT% | XRF |
| AL2O3 | 13.55 | | WT% | XRF |
| FEO | 1.17 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| MGO | 0.26 | | WT% | XRF |
| CAO | 0.67 | | WT% | XRF |
| NA2O | 4.53 | | WT% | XRF |
| K2O | 3.89 | | WT% | XRF |
| P2O5 | 0.09 | | WT% | XRF |
References
- Tucker, David; Hildreth, Wes; Ullrich, Tom; Friedman, Richard (2007) Geology and complex collapse mechanisms of the 3.72 Ma HanneganCaldera, north Cascades, Washington, USA. Geological Society of America Bulletin, vol.119, no.3-4, pp.329-342,Apr 2007 doi:10.1130/B25904.1
