Formation and evolution of Huanglongchang structure

Huangliongchang structure has complicated evolution history,its formation and evolution has undergone five major stages of development which is affected by east Sichuang steeply- folded structure and Dabashang structure,the main structure formed in the mid- and late of the Himalayan tectonic movement.The north-east of the tectonic system of Huanglongchang formed in the mid-Himalayan tectonic movement.The late Himalayan tectonic movement is the main stage that Huanglongchang structure formed.The north - west of the tectonic system that formed in late Himalayan tectonic movement strengthened or modified the earlier structure then formed the current tectonic system finally.