Sample LL-88-41
NavDat sample number 31685 · BASALT
Sample
| Sample ID | LL-88-41 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Basalt dikes cutting Wilson Ridge pluton. |
Location
| Latitude | 36.1058 |
|---|---|
| Longitude | -114.625 |
| Location | Wilson Ridge |
| State / province | Arizona |
| Volcanic field | Lake Mead area |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 13.4 | 12.06 | 14.74 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 54.1 | WT% | ICP | |
| AL2O3 | 16.9 | WT% | ICP | |
| FEO | 8.9 | WT% | ICP | |
| CAO | 7.4 | WT% | ICP | |
| MGO | 4.5 | WT% | ICP | |
| NA2O | 4.2 | WT% | ICP | |
| K2O | 1.5 | WT% | ICP | |
| TIO2 | 2.1 | WT% | ICP | |
| MNO | 0.1 | WT% | ICP | |
| P2O5 | 0.7 | WT% | ICP | |
| CO | 20 | PPM | INAA | |
| V | 198 | PPM | INAA | |
| HF | 5.1 | PPM | INAA | |
| TH | 12.4 | PPM | INAA | |
| TA | 2.1 | PPM | INAA | |
| LA | 123 | PPM | INAA | |
| CE | 213 | PPM | INAA | |
| SM | 10.9 | PPM | INAA | |
| EU | 2.6 | PPM | INAA | |
| YB | 2.3 | PPM | INAA | |
| LU | 0.3 | PPM | INAA | |
| SR | 1155.78 | PPM | MS-ID | |
| RB | 42.05 | PPM | MS-ID | |
| ND | 76.018 | PPM | MS-ID | |
| ND143_ND144 | 0.512133 | MS | ||
| SR87_SR86_INITIAL | 0.70815 | MS | ||
| PB206_PB204 | 17.887 | MS | ||
| PB207_PB204 | 15.537 | MS | ||
| PB208_PB204 | 38.725 | MS |
References
- Feuerbach, Dan L; Smith, Eugene I; Walker, J D; Tangeman, J A (1993) The role of the mantle during crustal extension; constraints from geochemistry of volcanic rocks in the Lake Mead area, Nevada and Arizona. Geological Society of America Bulletin, vol.105, no.12, pp.1561-1575, Dec 1993 doi:10.1130/0016-7606(1993)105<1561:TROTMD>2.3.CO;2