Sample 2V-2
NavDat sample number 119223 · ANDESITE
Sample
| Sample ID | 2V-2 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | LAVA FLOW |
Location
| Latitude | 30.3341 |
|---|---|
| Longitude | -114.677 |
| 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 | 62.49 | WT% | XRF | |
| TIO2 | 0.59 | WT% | XRF | |
| AL2O3 | 17.92 | WT% | XRF | |
| FEO | 4.3 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 2.88 | WT% | XRF | |
| CAO | 7.23 | WT% | XRF | |
| NA2O | 3.94 | WT% | XRF | |
| K2O | 0.45 | WT% | XRF | |
| P2O5 | 0.12 | WT% | XRF | |
| TOTAL | 100.55 | WT% | XRF | |
| RB | 13.3 | PPM | ICPMS | |
| BA | 309 | PPM | ICPMS | |
| SR | 536 | PPM | XRF | |
| NB | 2.93 | PPM | ICPMS | |
| ZR | 78 | PPM | XRF | |
| Y | 11.7 | PPM | ICPMS | |
| CS | 0.5 | PPM | ICPMS | |
| TH | 0.68 | PPM | ICPMS | |
| TA | 0.18 | PPM | ICPMS | |
| U | 0.31 | PPM | ICPMS | |
| V | 100 | PPM | XRF | |
| CR | 31 | PPM | XRF | |
| NI | 27 | PPM | XRF | |
| PB | 3.91 | PPM | ICPMS | |
| GA | 16 | PPM | XRF | |
| ZN | 52 | PPM | XRF | |
| HF | 1.49 | PPM | ICPMS | |
| LA | 6.68 | PPM | ICPMS | |
| CE | 11.9 | PPM | ICPMS | |
| PR | 1.68 | PPM | ICPMS | |
| ND | 7.67 | PPM | ICPMS | |
| SM | 2.05 | PPM | ICPMS | |
| EU | 0.72 | PPM | ICPMS | |
| GD | 2.13 | PPM | ICPMS | |
| TB | 0.34 | PPM | ICPMS | |
| DY | 2.11 | PPM | ICPMS | |
| HO | 0.43 | PPM | ICPMS | |
| ER | 1.23 | PPM | ICPMS | |
| TM | 0.16 | PPM | ICPMS | |
| YB | 1.02 | PPM | ICPMS | |
| LU | 0.15 | 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