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Sample EMD-209
NavDat sample number 31686 · BASALT
Sample
| Sample ID | EMD-209 |
|---|
| Rock name | BASALT |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | MAFIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | 80-m-thick section of flows and agglomerates are interbedded with the Lovell Wash member of the Tertiary Horse Spring Formation. |
|---|
Location
| Latitude | 36.1167 |
|---|
| Longitude | -114.75 |
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| Location | Government Wash |
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| State / province | Nevada |
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| Volcanic field | Lake Mead area |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 12 |
|
10.8 |
13.2 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 51.9 | | WT% | ICP |
| AL2O3 | 15.2 | | WT% | ICP |
| FEO | 9.4 | | WT% | ICP |
| CAO | 8.2 | | WT% | ICP |
| MGO | 3.8 | | WT% | ICP |
| NA2O | 3.7 | | WT% | ICP |
| K2O | 1.8 | | WT% | ICP |
| TIO2 | 3.2 | | WT% | ICP |
| MNO | 0.2 | | WT% | ICP |
| P2O5 | 1.8 | | WT% | ICP |
| CR | 63 | | PPM | INAA |
| SR | 1299.65 | | PPM | MS-ID |
| RB | 75.97 | | PPM | MS-ID |
| ND | 74.18 | | PPM | MS-ID |
| ND143_ND144 | 0.512128 | | | MS |
| SR87_SR86_INITIAL | 0.707337 | | | MS |
| PB206_PB204 | 18.16 | | | MS |
| PB207_PB204 | 15.56 | | | MS |
| PB208_PB204 | 38.939 | | | MS |
