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Sample CoV-88
NavDat sample number 21696 · BASALTIC-ANDESITE
Sample
| Sample ID | CoV-88 |
|---|
| Rock name | BASALTIC-ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.6 |
|---|
| Longitude | -106.35 |
|---|
| State / province | Colorado |
|---|
| Volcanic field | southeast San Juan volcanic field |
|---|
| Formation | Conejos Formation |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.8 |
|
31.6 |
32 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 58.8 | | WT% | XRF |
| TIO2 | 0.84 | | WT% | XRF |
| AL2O3 | 16.99 | | WT% | XRF |
| FEO | 7.48 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 2.04 | | WT% | XRF |
| CAO | 5.93 | | WT% | XRF |
| NA2O | 3.95 | | WT% | XRF |
| K2O | 2.33 | | WT% | XRF |
| P2O5 | 0.35 | | WT% | XRF |
| Y | 22 | | PPM | XRF |
| ZR | 149 | | PPM | XRF |
| NB | 7 | | PPM | XRF |
| V | 128 | | PPM | XRF |
| CR | 7 | | PPM | INAA |
| NI | 20 | | PPM | XRF |
| RB | 35 | | PPM | INAA |
| SR | 852 | | PPM | INAA |
| BA | 962 | | PPM | XRF |
| PB206_PB204 | 17.374 | | | MS |
| PB207_PB204 | 15.453 | | | MS |
| PB208_PB204 | 36.866 | | | MS |
| SR87_SR86 | 0.70467 | | | MS |
| ND143_ND144 | 0.512231 | | | MS |
References
- Colucci, M T; Dungan, M A; Ferguson, K M; Lipman, Peter W; Moorbath, Stephen (1991) Precaldera lavas of the Southeast San Juan volcanic field; parent magmas and crustal interactions. Journal of Geophysical Research, B, Solid Earth and Planets. 96; 8, Pages 13,413-13,434. 1991. . doi:10.1029/91JB00282
