Sample VP-2
NavDat sample number 119225 · ANDESITE
Sample
| Sample ID | VP-2 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | LAVA FLOW |
Location
| Latitude | 30.2328 |
|---|---|
| Longitude | -114.663 |
| Location | PUERTECITOS VOLCANIC PROVINCE |
| State / province | BAJA CALIFORNIA |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 2.6 | 2.5 | 2.7 |
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 60.95 | WT% | XRF | |
| TIO2 | 0.58 | WT% | XRF | |
| AL2O3 | 16.4 | WT% | XRF | |
| FEO | 3.82 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 6.54 | WT% | XRF | |
| CAO | 6.64 | WT% | XRF | |
| NA2O | 4.09 | WT% | XRF | |
| K2O | 0.78 | WT% | XRF | |
| P2O5 | 0.12 | WT% | XRF | |
| TOTAL | 99.96 | WT% | XRF | |
| RB | 12.2 | PPM | ICPMS | |
| BA | 419 | PPM | ICPMS | |
| SR | 406 | PPM | XRF | |
| NB | 3.39 | PPM | ICPMS | |
| ZR | 112 | PPM | XRF | |
| Y | 14.3 | PPM | ICPMS | |
| CS | 0.16 | PPM | ICPMS | |
| TH | 0.97 | PPM | ICPMS | |
| TA | 0.22 | PPM | ICPMS | |
| U | 0.38 | PPM | ICPMS | |
| NI | 120 | PPM | XRF | |
| PB | 3.68 | PPM | ICPMS | |
| HF | 2.72 | PPM | ICPMS | |
| LA | 10.4 | PPM | ICPMS | |
| CE | 21.3 | PPM | ICPMS | |
| PR | 2.74 | PPM | ICPMS | |
| ND | 11.6 | PPM | ICPMS | |
| SM | 2.92 | PPM | ICPMS | |
| EU | 0.93 | PPM | ICPMS | |
| GD | 2.86 | PPM | ICPMS | |
| TB | 0.46 | PPM | ICPMS | |
| DY | 2.72 | PPM | ICPMS | |
| HO | 0.55 | PPM | ICPMS | |
| ER | 1.48 | PPM | ICPMS | |
| TM | 0.21 | PPM | ICPMS | |
| YB | 1.31 | PPM | ICPMS | |
| LU | 0.2 | PPM | ICPMS |
References
- Martin-Barajas, Arturo; Stock, Joann M; Layer, Paul; Hausback, Brian; Renne, Paul; Lopez-Martinez, Margarita (1995) Arc-rift transition volcanism in the Puertecitos volcanic province, northeastern Baja California, Mexico. Geological Society of America Bulletin, vol.107, no.4, pp.407-424, Apr 1995 doi:10.1130/0016-7606(1995)107<0407:ARTVIT>2.3.CO;2