supported by the State Key Research and Development Program(2016YFE0203000);the National Natural Science Foundation of China(41490614,41802059 and 41822202);the National Postdoctoral Program for Innovative Talents(BX201700239);China Postdoctoral Science Foundation(2017M620065).
Orogenic mantle peridotite,mainly derived from the lithospheric mantle wedge,was initially incorporated into the subduction channel at depths of mostly 30–120 km and then underwent ultradeep(>150 km)subduction and cr...