supported by funds from the Key Project of National Natural Science Foundation of China (41430209);the Major State Basic Research Development Projects (2015CB856103);Most Special Fund from the State Key Laboratory of Continental Dynamics, Northwest University (BJ081331, 201210133);the National Natural Science Foundation of China (41020201, 41402045, 41602052);the Gold Geological Party of Chinese Armed Police Force Project (DD20160079)
Coesite is a polymorph of Si O2formed at speci?c high-pressure conditions, and its presence in some crustal rocks as relicts marks the exhumation of deep subducted material to mantle depths, thus providing robust evid...