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The Kongling terrane is a high grade metamorphic complex, exposed in the northern part of the Yangtze Block. It mainly consists of TTG gneisses, amphibolites, migmatites and metasedimentary rocks. The amphibolites occur as enclaves or layers in the TTG gneisses, and both the amphibolites and the TTG gneisses are intruded by granitic and diabasic dykes. U-Pb ages of zircons from the amphibolite, migmatite,...
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