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Sample RDS21
NavDat sample number 36734 · DACITE
Sample
| Sample ID | RDS21 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | High Y dacite |
|---|
Location
| Latitude | 27.9 |
|---|
| Longitude | -104.267 |
|---|
| Location | La Olivina xenolith locality |
|---|
| State / province | CHIHUAHUA |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.8 |
|
29.6 |
34 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 70.7 | | WT% | XRF |
| TIO2 | 0.7 | | WT% | XRF |
| AL2O3 | 14.2 | | WT% | XRF |
| FEO | 3.01 | | WT% | XRF |
| MNO | 0.06 | | WT% | AAS |
| MGO | 0.39 | | WT% | XRF |
| CAO | 1.22 | | WT% | XRF |
| NA2O | 3.94 | | WT% | AAS |
| K2O | 5.66 | | WT% | XRF |
| P2O5 | 0.11 | | WT% | XRF |
| LOI | 0.69 | | WT% | XRF |
| TOTAL | 98.36 | | WT% | XRF |
| RB | 180 | | PPM | XRF |
| SR | 145 | | PPM | XRF |
| BA | 947 | | PPM | XRF |
| LA | 67 | | PPM | XRF |
| NB | 36 | | PPM | XRF |
| ZR | 551 | | PPM | XRF |
| Y | 47 | | PPM | XRF |
| CE | 117 | | PPM | MS-ID |
| ND | 50 | | PPM | MS-ID |
| SR87_SR86 | 0.707074 | | | MS |
| SR87_SR86_INITIAL | 0.705531 | | | MS |
| ND143_ND144 | 0.512544 | | | MS |
