Sample LV-104
NavDat sample number 31675 · BASALT
Sample
| Sample ID | LV-104 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | One or two alkali basalt flows tilted about 20 degrees east extensively covered by Quaternary sediments. |
Location
| Latitude | 36.5053 |
|---|---|
| Longitude | -115.042 |
| Location | Las Vegas Range |
| State / province | Nevada |
| Volcanic field | Lake Mead area |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 16.4 | 14.76 | 18.04 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 42.49 | WT% | ICP | |
| AL2O3 | 10.76 | WT% | ICP | |
| FEO | 12.79 | WT% | ICP | |
| CAO | 9.78 | WT% | ICP | |
| MGO | 13.45 | WT% | ICP | |
| NA2O | 2.39 | WT% | ICP | |
| K2O | 1 | WT% | ICP | |
| TIO2 | 1.69 | WT% | ICP | |
| MNO | 0.16 | WT% | ICP | |
| P2O5 | 0.67 | WT% | ICP | |
| CR | 816 | PPM | INAA | |
| CO | 58 | PPM | INAA | |
| SC | 22.2 | PPM | INAA | |
| V | 234 | PPM | INAA | |
| HF | 5.22 | PPM | INAA | |
| TH | 5.2 | PPM | INAA | |
| TA | 0.71 | PPM | INAA | |
| LA | 46 | PPM | INAA | |
| CE | 92 | PPM | INAA | |
| SM | 10.2 | PPM | INAA | |
| EU | 2.3 | PPM | INAA | |
| YB | 1.7 | PPM | INAA | |
| LU | 0.1 | PPM | INAA | |
| SR | 795.58 | PPM | MS-ID | |
| RB | 48.27 | PPM | MS-ID | |
| ND | 55.76 | PPM | MS-ID | |
| ND143_ND144 | 0.512269 | MS | ||
| SR87_SR86_INITIAL | 0.70632 | MS | ||
| PB206_PB204 | 18.963 | MS | ||
| PB207_PB204 | 15.642 | MS | ||
| PB208_PB204 | 38.845 | 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