Evolution of 3-dimensional tectonics in the lithosphere and metallogenesis of the Yanshan intracontinental orogenic belt, China
Cui, S.; Wu, Z.; , Pei; Kutina, Jan
The Yanshan intracontinental orogenic belt of Northern China developed on the Archean-Paleoproterozoic cratonic basement is evidently different from those related to geosyncline closure, marginal subduction or collision of lithospheric plates. Three superstages of tectonic evolution of the lithosphere have been distinguished. Superstage of cratonic basement (3800-1800 Ma) mainly consisting of the Archean-Paleoproterozoic metamorphic rock series with Luliangian movement occurred at the end of Paleoproterozoic, causing formation of the united Sino-Korea craton (with Yanshan as one of its northern parts). Superstage of aulacogen and cratonic cover (1800-250 Ma) with wide rifting and fault subsidence, followed by depression and sedimentation on stable cratonic basement in Late Neoproterozoic-Paleozoic.