CHARACTERISTICS OF DEEP PRIMARY ANOMALIES AND ORE PROGNOSIS IN THE JINSHAN GOLD DEPOSIT, JIANGXI PROVINCE
LIU Zhi-yuan1,2, JIN Cheng-zhu1, LIANG Jun-hong1, ZHANG Kai-ping3, YU Rong-bing3, QIU Xiu-liang3
1. School of Sesources and Civil Engineering, Northeast University, Shenyang 110004, China;
2. Dandong Institute of Geological Exploration, CNNC, Dandong 118008, China;
3. Jinshan Gold Mine, Dexing 334213, China
Having studied the distribution and association characteristics of primary halos at three levels (0 m, -80 m and -105 m) of the Jinshan gold deposit in Jiangxi, the authors have reached some conclusions. The element associations of primary halos are complex, and the primary halos of different indicator elements coincide well with each other. As is closely related to Au. The anomalies of the front elements Hg, Sb and the rear elements Bi, Mo form superimposed halos and their average anomaly intensities are high. All this suggests that there may exist another enrichment zone in the depth. The Au mineralization becomes weaker at the -105 m level, while things are just the opposite for Cu. This implies that the magmatic hydrothermal activities obviously accumulated ore-forming materials in Early Yanshannian, and were likely to form compound deposits of Cu and Au at the depth.
［1］ Bonnemaison M, Maroux E. Auriferous mineralization in some shear-zones:A three-stage model of metallogenesis［J］.Mineral.Deposita.1990,25(2):96-104.
［2］ Cameron E M. Derivation of gold by oxidative metamorphism of a deep ductile shear zone:Part 1.Conceptual model［J］.Journal of Geochemical Exploration.1989,31:135-137.
［3］ Regenauer-lieb K, Yuen D A. Modeling shear zones in geological and planetary sciences:solid-and fluid-thermal-mechanical approaches［J］.Earth-Science Reviews. 2003,63(3,4):295-349.
［4］ 朱恺军,范宏瑞. 金山金矿的地质特征和形成条件［J］.南京大学学报,1991,2:177-185.
［5］ 李晓峰,华仁民,杨凤根,等.金山金矿钾氩年龄及其对赣东北构造演化的掉示意义［J］.岩石矿物学,2002,21(1):49-54.
［6］ 曾键年,林卫兵,范永香. 江西金山金矿床成矿地球化学特征［J］.地质地球化学,2002,20(4):26-33.
［7］ 肖勇. 金山金矿田脆-韧性剪切带与成矿模式［J］. 矿产与地质,2001,15(增刊):424-430.
［8］ 李惠,张文华,常凤池,等. 大型、特大型金矿盲矿预测的原生叠加晕模型［M］.北京:冶金工业出版社,1998.
［9］ Li Hui,Wang zhinong,Li Fuguo. Ideal models of superimposed primary halos in hydrothermal gold deposits［J］.Journal of Geochemical Exploration. 1995,55(1～3):329-336.
［10］ Liu Chongmin,Xu Waisheng. Primary geochemical anomalies in the Caijiaying Pb-Zn-Ag deposits,Hebei,China［J］.Journal of Geochemical Exploration.1995,55(1～3):25-32.
［11］ Kumru M N, Bakac M. R-mode factor analysis applied to the distribution of elements in soils from Aydin basin,Turkey［J］.Journal of Geochemical Exploration. 2003,77(2,3):81-91.
［12］ Reimann Clemens, Filzmoser Peter, Garrett Robert G. Factor analysis applied to regional geochemical data:problems and possibilities［J］.Applied Geochemistry.2002,17(3):185-206.
