TRANSITION FROM PALEO-ASIAN OCEAN DOMAIN TO CIRCUM-PACIFIC OCEAN DOMAIN FOR THE JI-HEI COMPOSITE OROGENIC BELT: Time Mark and Relationship to Global Tectonics
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Graphical Abstract
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Abstract
The rhythmic coupling of geological events of tectonic movement, magmatism, metamorphism, deposit formation and so on indicate that, for the Ji-Hei composite orogenic belt, the ending time of the Paleo-Asian Ocean tectonic domain is 250-230 Ma; while the starting time of the Pacific Ocean tectonic domain is 227-222 Ma. From the view of global tectonics, they are constrained by the forming time of Pangaea (330-230 Ma) and its first splitting time (224 Ma) after it entered the new super-continent cycle(230-0 Ma).
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