Sample MB97-28
NavDat sample number 51862 · ANDESITE
Sample
| Sample ID | MB97-28 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 43.1612 |
|---|---|
| Longitude | -118.384 |
| Location | Route 78 N |
| State / province | Oregon |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 16.24 | 15.74 | 16.73 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 55.35 | WT% | DCPAES | |
| TIO2 | 1.05 | WT% | DCPAES | |
| AL2O3 | 16.06 | WT% | DCPAES | |
| FE2O3 | 9.73 | WT% | DCPAES | |
| MNO | 0.15 | WT% | DCPAES | |
| MGO | 4.66 | WT% | DCPAES | |
| CAO | 6.78 | WT% | DCPAES | |
| NA2O | 3.22 | WT% | DCPAES | |
| K2O | 1.87 | WT% | DCPAES | |
| P2O5 | 0.28 | WT% | DCPAES | |
| LOI | 1.64 | WT% | DCPAES | |
| TOTAL | 100.79 | WT% | DCPAES | |
| NI | 79 | PPM | XRF | |
| CR | 87 | PPM | XRF | |
| SC | 21.9 | PPM | XRF | |
| V | 222 | PPM | XRF | |
| BA | 323 | PPM | XRF | |
| RB | 53 | PPM | XRF | |
| SR | 292 | PPM | XRF | |
| ZR | 89 | PPM | XRF | |
| Y | 28 | PPM | XRF | |
| NB | 9.6 | PPM | XRF | |
| GA | 19.8 | PPM | XRF | |
| CU | 122 | PPM | XRF | |
| CO | 33 | PPM | XRF | |
| ZN | 94 | PPM | XRF | |
| PB | 10 | PPM | XRF | |
| LA | 8 | PPM | XRF | |
| CE | 13 | PPM | XRF | |
| U | 2.9 | PPM | XRF | |
| TH | 4 | 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