Division of Dunmi fault zone Cenozoic magmatic cycle and Himalayan period tectonic movement

Through the nearly 200 isotope dating data statistical analysis,combined with the belt volcanic sedimentary basin,the distribution and evolution,the volcanic events stratigraphic division can be divided into 65～44 Ma,42～32 Ma,31～24 Ma,23～12 Ma,10～5.5 Ma,5～2.6 Ma six magmatic cycles.It shows that experienced 43 Ma,31 Ma,23 Ma,11 Ma,5.5 Ma,2.5 Ma six curtain tectonic movements in Himalayan period.It put forward a new understanding for northeast China,and China Eastern Himalayan period tectonic movement and related metallogenic events division