Discovery and geological significance of metamorphic and intrusive rock (system) of Qimantage region in Jinning epoch

Metamorphic intrusive rocks(bodies) in Jinning epoch which intruded into Jinshuikou rock group of the Paleo-proterozic, the age of U-Pb isotope being 831±51 Ma and belonging to Neo-Proterozoic,were discovered for the first time. The metamorphic intrusive rocks (bodies) derived from magma belong to remelting MPG type with lithosphere matter, and to a tectonic environment of synchronous collision. The discovery of metamorphic intrusive rocks (bodies) has important significance to a thorough investigation and study of Presinian period basement in the west of eastern Kunlun Mt. and to resuming or confirming the developing and evolvement history of Qimantage tectono-magma belt.