Sample MB97-80
NavDat sample number 51902 · ANDESITE
Sample
| Sample ID | MB97-80 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 42.8036 |
|---|---|
| Longitude | -118.545 |
| Location | Miranda Flat |
| State / province | Oregon |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 16.36 | 16.13 | 16.58 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 54.9 | WT% | DCPAES | |
| TIO2 | 1.91 | WT% | DCPAES | |
| AL2O3 | 15.26 | WT% | DCPAES | |
| FE2O3 | 9.81 | WT% | DCPAES | |
| MNO | 0.18 | WT% | DCPAES | |
| MGO | 2.92 | WT% | DCPAES | |
| CAO | 5.72 | WT% | DCPAES | |
| NA2O | 4.13 | WT% | DCPAES | |
| K2O | 2.84 | WT% | DCPAES | |
| P2O5 | 1.27 | WT% | DCPAES | |
| LOI | 0.68 | WT% | DCPAES | |
| TOTAL | 99.62 | WT% | DCPAES | |
| NI | 7 | PPM | XRF | |
| CR | 13 | PPM | XRF | |
| SC | 17.6 | PPM | XRF | |
| V | 172 | PPM | XRF | |
| BA | 1023 | PPM | XRF | |
| RB | 54 | PPM | XRF | |
| SR | 701 | PPM | XRF | |
| ZR | 253 | PPM | XRF | |
| Y | 38 | PPM | XRF | |
| NB | 15.7 | PPM | XRF | |
| GA | 23.3 | PPM | XRF | |
| CU | 47 | PPM | XRF | |
| CO | 23 | PPM | XRF | |
| ZN | 139 | PPM | XRF | |
| PB | 11 | PPM | XRF | |
| LA | 35 | PPM | XRF | |
| CE | 75 | PPM | XRF | |
| U | 1.4 | PPM | XRF | |
| TH | 7.6 | PPM | XRF |
References
- Brueseke, Matthew E; Heizler, Matthew T; Hart, William K; Mertzman,Stanley A (2007) Distribution and geochronology of Oregon Plateau (U.S.A.) flood basaltvolcanism; the Steens Basalt revisited. Journal of Volcanology and Geothermal Research, vol. 161, no. 3,pp.187-214, 15 Mar 2007 doi:10.1016/j.jvolgeores.2006.12.004