group indicate
1.The results of SHRIMP zircon UPb dating reveal that the inherited zircon in two-mica granitic rocks gave a few Archean and a large number of ages between 1 120 Ma and 1 489 Ma, which represent the age of the main source region of the zircon. Those ages are essentially in agreement with the protolith age of the metamorphic Nianqingtanggu Group, which indicate their close affinity.
8.Please indicate the services / products you want to provide to SINO GROUP. You may provide additional job reference; e.g. details of work photograph under separated cover.

