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Single-grain zircon U-Pb dating was carried out to constrain the emplacement timing of granitic plutons at Chaxinzi, Xiaoweishahe and Longtou in the Tonghua area, south of Jilin Province. The results show that these plutons formed in the Triassic with ages of 203–217 Ma. Geological and geochemical characteristics indicate that the plutons are composed of quartz diorite and granite. The former was...
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