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DiwabasinsandstonetypecopperdepositsofChinaplayanimportantroleeconomically.Thede-positsarclocatedalongthefringeofadiwabasin.Itsore-bearjngstrataaredepositedinaninlandbasinandcomposedofdarkenedandbIeachedbeds-Bccauseofdiwabasin’sactivity,e1evationandsubsi-