Sample MV-29
NavDat sample number 127396 · TONALITE
Sample
| Sample ID | MV-29 |
|---|---|
| Rock name | TONALITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | age from Damon, P.E., Shafiqullah, M., Roldan-Quintana, J., and Cocheme, J.J., 1983, El batolito Laramide (90-40 Ma) de Sonora: Asociacion de Ingenieros de Minas, Metalugistas y Geologos de Mexico (AIMMGM), Memoria tecnica XV, Guadalajara, p.63-95. |
Location
| Latitude | 26.3875 |
|---|---|
| Longitude | -108.485 |
| Location | Tetaroba |
| State / province | Sinaloa |
| Country | MEXICO |
| Location comment | E of El Fuerte |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 57.2 | 56 | 58.4 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 66.8 | WT% | XRF | |
| TIO2 | 0.55 | WT% | XRF | |
| AL2O3 | 15.9 | WT% | XRF | |
| FE2O3 | 1.14 | WT% | XRF | |
| FEO | 2.15 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | 1.29 | WT% | XRF | |
| CAO | 3.33 | WT% | XRF | |
| NA2O | 4.79 | WT% | XRF | |
| K2O | 2.12 | WT% | XRF | |
| P2O5 | 0.15 | WT% | XRF | |
| LOI | 0.7 | WT% | IGN | |
| LA | 12.2 | PPM | ICPMS | |
| CE | 28.39 | PPM | ICPMS | |
| ND | 14.15 | PPM | ICPMS | |
| SM | 2.71 | PPM | ICPMS | |
| EU | 0.74 | PPM | ICPMS | |
| TB | 0.38 | PPM | ICPMS | |
| YB | 0.74 | PPM | ICPMS | |
| LU | 0.12 | PPM | ICPMS | |
| RB | 48 | PPM | ICPMS | |
| SR | 184 | PPM | ICPMS | |
| BA | 1046 | PPM | ICPMS | |
| ZR | 87 | PPM | ICPMS | |
| Y | 10 | PPM | ICPMS | |
| TH | 3.36 | PPM | ICPMS | |
| TA | 0.33 | PPM | ICPMS | |
| HF | 3.19 | PPM | ICPMS | |
| NB | 7.66 | PPM | ICPMS |
References
- Valencia-Moreno, Martin; Ruiz, Joaquin; Barton, Mark D; Patchett, P Jonathan; Zuercher, Lukas; Hodkinson, Damian G; Roldan-Quintana, Jaime (2001) A chemical and isotopic study of the Laramide granitic belt of northwestern Mexico; identification of the southern edge of the North American Precambrian basement. Geological Society of America Bulletin, vol.113, no.11, pp.1409-1422, Nov 2001 doi:10.1130/0016-7606(2001)113<1409:ACAISO>2.0.CO;2