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Sample 87-14
NavDat sample number 21566 · ANDESITE
Sample
| Sample ID | 87-14 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
Location
| Latitude | 44.1762 |
|---|
| Longitude | -114.2 |
|---|
| Location | near Chicken Creek |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 45 |
|
40 |
51 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 54.93 | | WT% | XRF |
| TIO2 | 0.78 | | WT% | XRF |
| AL2O3 | 12.69 | | WT% | XRF |
| FE2O3T | 8.48 | | WT% | XRF |
| MNO | 0.14 | | WT% | XRF |
| MGO | 8.13 | | WT% | XRF |
| CAO | 7 | | WT% | XRF |
| NA2O | 2.17 | | WT% | XRF |
| K2O | 3.26 | | WT% | XRF |
| P2O5 | 0.38 | | WT% | XRF |
| LOI | 1.81 | | WT% | XRF |
| TOTAL | 99.77 | | WT% | XRF |
| RB | 139 | | PPM | XRF |
| SR | 600 | | PPM | XRF |
| BA | 1408 | | PPM | XRF |
| Y | 19 | | PPM | XRF |
| ZR | 198 | | PPM | XRF |
| V | 152 | | PPM | XRF |
| NI | 109 | | PPM | XRF |
| CR | 454 | | PPM | XRF |
| LA | 39.7 | | PPM | MS |
| CE | 75.6 | | PPM | MS |
| PR | 8.46 | | PPM | MS |
| ND | 35.5 | | PPM | MS |
| SM | 7.28 | | PPM | MS |
| EU | 1.71 | | PPM | MS |
| GD | 5.49 | | PPM | MS |
| HO | 0.76 | | PPM | MS |
| ER | 1.92 | | PPM | MS |
| YB | 1.82 | | PPM | MS |
| U | 2.98 | | PPM | MS |
| TH | 11.4 | | PPM | MS |
| PB | 24.4 | | PPM | MS |
| NB | 16.9 | | PPM | MS |
| HF | 5.4 | | PPM | MS |
| CS | 6.9 | | PPM | MS |
| W | 2.8 | | PPM | MS |
| MO | 2.8 | | PPM | MS |
| PB206_PB204 | 18.537 | | | TIMS |
| PB207_PB204 | 15.619 | | | TIMS |
| PB208_PB204 | 38.995 | | | TIMS |
References
- Norman, Marc D; Mertzman, Stanley A (1991) Petrogenesis of Challis Volcanics from central and southwestern Idaho;trace element and Pb isotopic evidence. Journal of Geophysical Research, B, Solid Earth and Planets, vol.96,no.8, pp.13,279-13,293, 30 Jul 1991 doi:10.1029/91JB00285