Characteristics of Makeng Iron Deposit in Southwestern Fujian Province, Implications for the Skarn Deposit of Magmatic Origin

Makeng iron deposit as one of the most important iron deposit in southwestern China, it has provided a typical model for several “Makeng” style polymetallic deposits discovered along the Wuyishan polymetallogenic belt.The magnetite as the major metallic mineral is hosted between the Lindi formation known as sandstone and Jinshe-Qixia formation known as limestone with Dayang and Juzhou granite distributing aside and diabase intruding in different time.The genesis of Makeng deposit has been controversial, three theories occupied a dominant position, which includes: (1) strata bound skarn deposit (2) Marine volcanic sedimentary and hydrothermal reformation; (3) Terrigenous sediments with post fluid re-working. Based on fieldwork, microscopic observation and geochemistry, we offer a new perspective about the genesis of Makeng iron deposit:a magmatic origin.