New age constraints on the timing and origin of iron oxide-apatite mineralization at the Yangyang di

来源 :The International Conference on Continental Dynamics(2014年大陆 | 被引量 : 0次 | 上传用户:frgverger343
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1.Introduction The Yangyang deposit is one of the biggest iron deposits in the Republic of Korea which produced up to 8 million metric tons of iron ore with an average of 60 wt.%Fe.The Yangyang deposit is characterized by the occurrence of a distinctive mineral assemblage of the IOA deposit,also known as ?Kiruna-type deposit.The oxide-apatite ore bodies occur within the Triassic post-collisional sheared syenite.In this study we measured major,trace and Pb isotope composition of the magnetite,apatite and sphene from the Yangyang deposit to investigate the age of mineralization and ore genesis.
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