Call in question and discussion: Are there sandwiched low-grade metamorphic slabs within UHP metamorphic rocks in the Dabieshan terrane?

Some geologists reported their discovery of sandwiched low-grade metamorphi c slabs within UHP metamorphic Complexes in Changpu, Yuexi County, Anhui Pr ovince. They also suggested that some coesite-bearing eclogites are igneous veins, which intruded low-grade metamorphic slabs and other related rocks. Moreover they further called in question to UHP metamorphic process and co ntinental collision tectonism in the Dabieshan terrane. Based on our recent study, so-called low-grade metamorphic slabs are strongly deformed fabric, fine-grained and tectonic recrystallized mylonites and tectonites. Their p rotolith rocks are garnet-bearing orthogneiss, eclogite and marble, as well as a few amounts of strongly deformed acid and basic veins. Their metamorp hic, geochemical and geochronological characteristics are also identical wi th UHPM rocks and regional country orthogneisses. Therefore we conclude tha t there are not low-grade metamorphic slabs sand wiched with UHP metamorphi c rocks in the Dabieshan terrane.