Sample LD-29
NavDat sample number 16933 · TRACHYANDESITE
Sample
| Sample ID | LD-29 |
|---|---|
| Alternate ID | 2376 |
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 21.43 |
|---|---|
| Longitude | -104.73 |
| Location | Tepetiltic |
| State / province | Nayarit |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.48 | 0.02 | 0 | 3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.8 | WT% | UNKNOWN | |
| TIO2 | 1.52 | WT% | UNKNOWN | |
| AL2O3 | 17.4 | WT% | UNKNOWN | |
| FEOT | 8.1 | WT% | UNKNOWN | |
| MNO | 0.12 | WT% | UNKNOWN | |
| MGO | 3.1 | WT% | UNKNOWN | |
| CAO | 6.44 | WT% | UNKNOWN | |
| NA2O | 4.7 | WT% | UNKNOWN | |
| K2O | 1.42 | WT% | UNKNOWN | |
| P2O5 | 0.46 | WT% | UNKNOWN | |
| BE | 1.59 | PPM | UNKNOWN | |
| B | 8 | PPM | UNKNOWN | |
| NI | 21 | PPM | UNKNOWN | |
| CU | 32 | PPM | UNKNOWN | |
| ZN | 109 | PPM | UNKNOWN | |
| RB | 15 | PPM | UNKNOWN | |
| SR | 663 | PPM | UNKNOWN | |
| Y | 28 | PPM | UNKNOWN | |
| ZR | 201 | PPM | UNKNOWN | |
| NB | 18 | PPM | UNKNOWN | |
| BA | 764 | PPM | UNKNOWN | |
| SR87_SR86 | 0.70423 | UNKNOWN | ||
| ND143_ND144 | 0.512782 | UNKNOWN |
References
- Verma, Surendra Pal; Nelson, Stephen A (1989) Isotopic and trace element constraints on the origin and evolution of alkaline and calc-alkaline magmas in the northwestern Mexican volcanic belt. Journal of Geophysical Research, B, Solid Earth and Planets. 94; 4, Pages 4531-4544. 1989. doi:10.1029/JB094iB04p04531