supported by the National Natural Science Foundation of China(92055208,41772059,42174080);the CAS"Light of West China"Program(2018-XBYJRC-003);the Guangxi Natural Science Foundation for Distinguished Young Scholars,China(2018GXNSFFA281009);the Guangxi Science Innovation Base Construction Foundation(GuikeZY21195031);the Guangxi Natural Science Foundation for Innovation Research Team Program(GXNSFGA380004);the Fifth Bagui Scholar Innovation Project of Guangxi Zhuang Autonomous Region,China。
The Central Tianshan Block is one of numerous microcontinental blocks within the Central Asian Orogenic Belt(CAOB)that overlies Precambrian basement rocks.Constraining the evolution of these ancient basement rocks is ...