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Title: $Dating of late Paleozoic detrital zircon in Horqin Right Wing Middle Banner of Inner Mongolia and its significance
Abstract: The detrital zircon U-Pb geochronology of the Late Paleozoic strata in Horqin Right Wing Middle Banner was studied in this paper. Sample 130909-01 and 130910-15 were tuffaceous sandstone and lithic quartz sandstone samples, respectively. The detrital zircon ages can be divided into four groups: 252~278Ma, 286~359Ma, 381~462Ma and older than 500 Ma. The youngest zircon age(256.5±1.7Ma) constrains the maximum sedimentary age of the Late Permian. A large number of relict zircons were existent in the samples, which kept a record of Precambrian basement, early Paleozoic arc magmatic rocks and magmatic activity event during Permian-Carboniferous period.