Is there a Grenvillian basement in the Guerrero-Morelos Platform of Mexico?

Is there a Grenvillian basement in the Guerrero-Morelos Platform of Mexico?

Blog Article

In the Guerrero-Morelos platform (Guerrero State, Mexico) the adakitic rocks of Early Tertiary age contain abundant hornblende-rich tonalite xenoliths.Zircon crystals have been concentrated from both adakites and xenoliths, and dated using in-situ U-Pb ion NiCd Portable Phone Battery microprobe analyses.These analyses indicate the presence of inherited Grenvillian and early Triassic/late Permian crust ages, as well as a Paleocene age related with the adakite rock intrusion.This range of inherited ages is reported for the first time in the Guerrero-Morelos platform, suggesting that a continous Grenvillian crust exists between the Oaxacan complex,to NEFF N70 T27CS59S0 Gas Hob - Black the East, and the Guerrero-Morelos platform.