Tectonic dynamic system and compound orogeny: Additionally discussing the temporal-spatial evolution of Sanjiang orogeny, Southwest China
构造动力体制与复合造山作用——兼论三江复合造山带时空演化

The tectonic dynamic system is the base of studying on regional geotectonic evolution and metallogenetic geological environment. As one of the most concentrated regions of the global metal mineral resources and with the best abundant records of the geological tectonic evolution, orogenic belts are the primary objects of studing and explaining different tectonic dynamic system and corresponding metallogenitic environment and mineralization. The plate tectonic derived from the oceans, and it depicts and explains accretion of the continental edge and disappearing of the oceanic plates and corresponding geological phenomena, which are leaded by the plates tectonic mainly in horizontal action, and the geodynamic system named oceanic dynamic system; The continental tectonic depicts and explains the continental substantial accretion and disappearing and corresponding geological phenomena, which mainly happened in intracontinents and not in continental edge and mainly in vertical actions (the crust and the mantle acts each other), and the dynamic system named continental dynamic system; That the transition of from the ocean to the continent is dynamic system of coupling each other and co-action, which mainly moves in vertical active and horizontal action, and it depicts and explains the ocean switched to the continent and corresponding geological phenomena, and it named transitional dynamic systems. On the earth, different tectonic dynamic systems have the features of succeeding conversion in the same areas and coexist in different areas. Each tectonic dynamic systems can produce orogenics, therefore, at the same time there are all kinds of orogeny and orogenic belts on the earth, which can summarized four types of subduction orogeny (or orogenic belts), collision orogeny (or orogenic belts), extensional orogeny (or orogenic belts) and intracontinental orogeny (or orogenic belts) that completely reflect the orogenetic belts evolution processes. The concepts of compoud orogenics scientific explain the complexity of the global orogenetic belts, and it has three means: The first is the like and unlike orogenetic belts compound (or overlaps) in space in different phases, and the second is orogenitic times compound (or stack) of the same orogenetic belts in different geological historical periods and different tectonic dynamic systems, and the third is at the same time with the natures of temporal-spatial compound orogenetic belts.Studing on Sanjian orogeny shows it is a typical compound orogenetic belts with complex temporal-spatial configuration.