Age and material sources of lithium-fluorine granites of the Far East (U-Pb and Lu-Hf isotope data).

The article presents a study on the lutetium-hafnium (Lu-Hf) and uranium-lead (U-Pb) isotope systems with concepts of geochemical evolution of the crust of the Earth. It says that the study used zircon U-Pb dating for verification due to the material's low sensitivity to greisenization. It discusses the analysis of the age ranges between lithium-fluorine (Li-F) formation, which was characterized by monzonitoids intrusions. It adds that the data obtained show that Li-F granites from the Far East are the youngest in Eurasia.