Sample OAB 10-121
NavDat sample number 31673 · BASALT
Sample
| Sample ID | OAB 10-121 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Flows and dikes. Flows interbedded with gypsiferous Tertiary sediments. |
Location
| Latitude | 36.4119 |
|---|---|
| Longitude | -114.384 |
| Location | Black Point |
| State / province | Nevada |
| Volcanic field | Lake Mead area |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 6.01 | 5.409 | 6.611 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 44.58 | WT% | ICP | |
| AL2O3 | 14.35 | WT% | ICP | |
| FEO | 13.82 | WT% | ICP | |
| CAO | 6.55 | WT% | ICP | |
| MGO | 8.76 | WT% | ICP | |
| NA2O | 4.17 | WT% | ICP | |
| K2O | 0.7 | WT% | ICP | |
| TIO2 | 1.1 | WT% | ICP | |
| MNO | 0.19 | WT% | ICP | |
| P2O5 | 0.3 | WT% | ICP | |
| CR | 271 | PPM | INAA | |
| CO | 56 | PPM | INAA | |
| SC | 24.5 | PPM | INAA | |
| V | 194 | PPM | INAA | |
| HF | 1.7 | PPM | INAA | |
| TA | 0.95 | PPM | INAA | |
| LA | 12.6 | PPM | INAA | |
| CE | 24.3 | PPM | INAA | |
| SM | 3.1 | PPM | INAA | |
| EU | 0.9 | PPM | INAA | |
| YB | 1.8 | PPM | INAA | |
| LU | 0.3 | PPM | INAA | |
| SR | 246 | PPM | AAS | |
| RB | 9 | PPM | AAS | |
| BA | 176 | PPM | AAS | |
| NI | 206 | PPM | AAS | |
| NB | 13 | PPM | XRF | |
| ZR | 77 | PPM | XRF | |
| SR | 246.12 | PPM | MS-ID | |
| RB | 8.98 | PPM | MS-ID | |
| ND143_ND144 | 0.512456 | MS | ||
| SR87_SR86_INITIAL | 0.70793 | MS | ||
| PB206_PB204 | 17.947 | MS | ||
| PB207_PB204 | 15.499 | MS | ||
| PB208_PB204 | 38.291 | 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