Transport and precipitation of the elements during fluid rock interaction in Huangbuling gold deposit, Zhaoyuan, China
Linglong granite is the main wall rock of ore bodies in Huangbuling gold deposit, Zhaoyuan. The main alteration in the deposit includes red alteration, sericitization and carbonatization. The orebodies occurred mainly in the sericitized zone. Compared with fresh granite, content of TiO2, A12O3, FeO, CaO, Na2O, MnO decreased in the altered rocks, content of SiO2, K2O, MgO, Fe2O3, CO2 and H2O+ also changed regularly in the altered rocks. From fresh Linglong granite to red-altered granite then to sericitization, ∑REE, ∑Ce/∑Y, δCe,δEu and La/Sm ratio decreased and ∑Y increased gradually. Compared with fresh granite, content of Fe, Mn,Pb, and Zn decreased in red-altered granite and increased remarkably in the sericitized zone. The ore-forming fluid was rich in sulfate and CO2. The Huangbuling deposit formed during circulation of meteoric water driven by lithosphere- mantle thermal convection.
B.Yang J.Lai E.Liang S.Peng
Institute of Geosciences and Environmental Engineering, Central South University, Changsha
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
157-160
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）