The Appraisal Of Favorableness To Ore-Forming Of Copper And Polymetallic Ore In YongPing Of Jiang Xi Province

Copper is an important strategy of our country's resources,and widely used in electrical,mechanical,construction,national defense and other fields. However, the copper found in our existing resources can not meet the needs of economic development.Yongping is on the northeast metallogenic belt of Jiangxi province and have a favorable geological setting of Ore-Forming processes,but since finding Yongping copper ore,we have no new breakthrough in prospecting ore.So,we need to use new ways to appraise the Ore-Forming in Yongping area.In Yongping, the main type of ore deposit is skarn-type.We have the different understanding of metamorphic rock in the work area, then change the mixed granite and a part of migmatite into granite.By anayzing the gravity anomaly,aeromagnetic anomaly,geochemicai anomaly, we give a idea that having a broad sense contact belt in the work area.We collected a large amount of geological,geophysical,geochemical data and established spatial database by the layer classification which used to appraise ore-forming favorableness.By study the metallogenic regularity of the work area, we determine the ore-forming factors.and give the relative importance of factors through the scoring method.The paper gives the reasonable and favorable ore-forming area bye GIS space analysis.