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Sample RDS75
NavDat sample number 36750 · DACITE
Sample
| Sample ID | RDS75 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Low 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 |
|---|
| 34.6 |
|
34.7 |
35.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.4 | | WT% | XRF |
| TIO2 | 0.51 | | WT% | XRF |
| AL2O3 | 15.5 | | WT% | XRF |
| FEO | 2.84 | | WT% | XRF |
| MNO | 0.04 | | WT% | AAS |
| MGO | 0.91 | | WT% | XRF |
| CAO | 3.06 | | WT% | XRF |
| NA2O | 3.39 | | WT% | AAS |
| K2O | 4.21 | | WT% | XRF |
| P2O5 | 0.16 | | WT% | XRF |
| LOI | 2.89 | | WT% | XRF |
| TOTAL | 99.52 | | WT% | XRF |
| RB | 156 | | PPM | XRF |
| SR | 405 | | PPM | XRF |
| BA | 1349 | | PPM | XRF |
| LA | 40 | | PPM | XRF |
| NB | 10 | | PPM | XRF |
| ZR | 235 | | PPM | XRF |
| Y | 16 | | PPM | XRF |
| NI | 8 | | PPM | XRF |
| SC | 8 | | PPM | XRF |
| PB | 16.4 | | PPM | ICPMS |
| TH | 12.5 | | PPM | ICPMS |
| U | 3.6 | | PPM | ICPMS |
| CE | 72 | | PPM | MS-ID |
| ND | 26 | | PPM | MS-ID |
| SR87_SR86 | 0.705091 | | | MS |
| SR87_SR86_INITIAL | 0.704549 | | | MS |
| ND143_ND144 | 0.512528 | | | MS |
| PB206_PB204 | 18.48 | | | MS |
| PB207_PB204 | 15.62 | | | MS |
| PB208_PB204 | 38.35 | | | MS |
