Sample KT82-183
NavDat sample number 31688 · BASALT
Sample
| Sample ID | KT82-183 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | 60 km³ stratovolcano composed of shoshonite, latite, trachydacite, and trachyte lava. Volcano is cut by a radial dike system. |
Location
| Latitude | 36.1667 |
|---|---|
| Longitude | -114.6 |
| Location | Hamblin-Cleopatra Volcano |
| State / province | Nevada |
| Volcanic field | Lake Mead area |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 12.85 | 11.5 | 14.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 55.89 | WT% | ICP | |
| AL2O3 | 16.34 | WT% | ICP | |
| FEO | 7.17 | WT% | ICP | |
| CAO | 5.4 | WT% | ICP | |
| MGO | 3.48 | WT% | ICP | |
| NA2O | 4.1 | WT% | ICP | |
| K2O | 1.39 | WT% | ICP | |
| TIO2 | 2.72 | WT% | ICP | |
| MNO | 0.11 | WT% | ICP | |
| P2O5 | 0.49 | WT% | ICP | |
| CO | 22.76 | PPM | INAA | |
| SC | 14.11 | PPM | INAA | |
| V | 145 | PPM | INAA | |
| HF | 8.15 | PPM | INAA | |
| TH | 13.53 | PPM | INAA | |
| TA | 2.84 | PPM | INAA | |
| CE | 126.79 | PPM | INAA | |
| SM | 8.29 | PPM | INAA | |
| EU | 1.99 | PPM | INAA | |
| YB | 2.04 | PPM | INAA | |
| LU | 0.26 | PPM | INAA | |
| SR | 588.44 | PPM | MS-ID | |
| RB | 47.52 | PPM | MS-ID | |
| ND | 45.27 | PPM | MS-ID | |
| ND143_ND144 | 0.512456 | MS | ||
| SR87_SR86_INITIAL | 0.70562 | MS | ||
| PB206_PB204 | 18.096 | MS | ||
| PB207_PB204 | 15.538 | MS | ||
| PB208_PB204 | 38.549 | 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