Sequence of Quaternary Deposits in Pingdingshan , Henan Province
yang chang xiu~(1.2); liu zhen hong~(1.2); wu tai an~(1.2); ciu xiao feng; li chun yan~(1.2); yang chang qing~(1.2)(1. henan institute of geological survey; zhengzhou; henan 450007; 2. geological survey; henan bureau of geology and mineral resources; pingdingshan; henan 457021)
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