• 责任者：Xue Kai (Zijin Mining Group Co. ; Shanghang 364200 ; China)
• 刊名：Geotectonica et Metallogenia
• 出版年：2013
• 卷期：37(3)
• 关键词：铜矿 ; copper ores ; 福建 ; Fujian Province
• 页码：p.463-470
• 图表：6 illus., 2 tables, 20 refs.
• 分类号：1001
• issnNo：ISSN1001-1552
• isbnNo：CN44-1595/P

     The Wuziqilong copper deposit is a transitional-type between porphyry- and epithermal-type deposit located inside of the Zijinshan Au-Cu-Mo polymetallic ore field. Alteration and mineralization in the deposit are pervasive and intensive, which show typical zonation both horizontally and vertically. Based on the sulfide assemblages, the deposit can be divided into the South, Middle, and North mineralization zones. Ore bodies mainly occur between the elevation of 300-480 m in the Middle mineralization zone, and was controlled by the Northeast- and Northwest-trending faults and fractures. Near infrared spectroscopy technique was utilized for identifying alteration minerals in drill cores and determining the alteration zones in the mining area. Combining with the drill core logging and geological mapping, alunite-dickite-silicic alteration zone, dickite-sericite-silicic alteration zone, and sericite-silicic alteration zone were recognized. The type of mineralization is closely related to different alteration types, i.e., the typical pyrite- covellite-digenite assemblage is constrained in the alunite-dickite-silicic zone, while the pyrite-chalcopyrite-bornite assemblage is pervasively observed in the dickite-sericite-silicic alteration zone. The overprinting zones of the forementioned two alteration types host high-grade ores, which was used for exploration of ＂bonanza＂ ores. These two alteration zones and their close relationship with mineralization were used as indicators for exploration and deep prospecting in the area.