Sample VC87-54
NavDat sample number 119219 · ANDESITE
Sample
| Sample ID | VC87-54 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | LAVA FLOW |
Location
| Latitude | 30.4534 |
|---|---|
| Longitude | -114.944 |
| 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 | 55.07 | WT% | XRF | |
| TIO2 | 1.16 | WT% | XRF | |
| AL2O3 | 18.68 | WT% | XRF | |
| FEO | 4.46 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 4.98 | WT% | XRF | |
| CAO | 8.48 | WT% | XRF | |
| NA2O | 3.99 | WT% | XRF | |
| K2O | 2.37 | WT% | XRF | |
| P2O5 | 0.69 | WT% | XRF | |
| TOTAL | 99.51 | WT% | XRF | |
| RB | 55.3 | PPM | ICPMS | |
| BA | 1490 | PPM | ICPMS | |
| SR | 1009 | PPM | XRF | |
| NB | 20.6 | PPM | ICPMS | |
| ZR | 244 | PPM | XRF | |
| Y | 27.2 | PPM | ICPMS | |
| CS | 0.63 | PPM | ICPMS | |
| TH | 5.99 | PPM | ICPMS | |
| TA | 1.04 | PPM | ICPMS | |
| U | 1.55 | PPM | ICPMS | |
| V | 146 | PPM | XRF | |
| CR | 90 | PPM | XRF | |
| NI | 50 | PPM | XRF | |
| PB | 14.1 | PPM | ICPMS | |
| GA | 20 | PPM | XRF | |
| ZN | 79 | PPM | XRF | |
| HF | 4.8 | PPM | ICPMS | |
| LA | 59.9 | PPM | ICPMS | |
| CE | 112 | PPM | ICPMS | |
| PR | 13.3 | PPM | ICPMS | |
| ND | 53.4 | PPM | ICPMS | |
| SM | 10.8 | PPM | ICPMS | |
| EU | 2.95 | PPM | ICPMS | |
| GD | 8.64 | PPM | ICPMS | |
| TB | 1.07 | PPM | ICPMS | |
| DY | 5.59 | PPM | ICPMS | |
| HO | 1.01 | PPM | ICPMS | |
| ER | 2.75 | PPM | ICPMS | |
| TM | 0.37 | PPM | ICPMS | |
| YB | 2.21 | PPM | ICPMS | |
| LU | 0.35 | 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