• 责任者：Wu Jianliang (China University of Geosciences ; Wuhan 430074 ; China) ; Lü Xinbiao
• 刊名：Geology and Prospecting
• 出版年：2013
• 卷期：49(5)
• 关键词：银矿 ; silver ores ; 金矿 ; gold ores ; 原生晕 ; primary haloes ; 江西 ; Jiangxi Province
• 页码：p.836-845
• 图表：8 illus., 4 tables, 24 refs.
• 分类号：1001
• issnNo：ISSN0495-5331
• isbnNo：CN11-2043/P

     This paper describes the geochemical characteristics of primary haloes of the VII vein in the Wannian silver-gold deposit, Jiangxi Province. The factor analysis results show that F1 stands for Ag mineralization in the quartz-multimetal sulfide stage, F2 stands for Ag and Au mineralization in the fine particles sulfide stage, which reflects this deposit has a feature of one period of Au mineralization and two periods of Ag mineralization. The Vii vein hosts 3 primary halo belts from the southwest to the northeast. The 2nd primary halo belt exhibits an obvious unusual zoning sequence （ from high to low） ： Sn - Au - Cu - Mn - B - Mo - Ni - F - Ag - Cr - Hg - Pb - Zn - W - Bi, where the trail halo and the front halo arc superimposed in its end part. Geo- chemical parameters with a variation of ＂down-up-down-up＂ also indicate the existence of deep orebodies underneath. Metallogeny shows the VII ore body occurs in the VII structural fracture belt and is strictly controlled by it . The lateral extension of the thick orebody to the deep part is in NE direction in a form of en echelon. The thick orebody and the higher product of Ag - Au grade and the thickness of ore body both have an evident extension in the area blow the -235 m level between the 46th -56th exploration lines as favorable prospecting indicators. Based on these data, a three-dimensional deep ore- body prediction model is established to provide evidence for the further exploration work.