金属硫化矿物交代反应的电位序1)
来源期刊:中南大学学报(自然科学版)1988年第3期
论文作者:仇勇海 陈白珍
文章页码:235 - 242
关键词:硫化物矿床; 硫化矿物; 金属矿物; 氧化带(地化); 热力学平衡; 电化学反应; 交代作用; 电极电位/电位序
Key words:sulfid deposit; sulfide minerals; metallic mineral; zone of oxidation; thermodynamic equilibrium; electrochemical reaction; metasomtism; electrode potential/potential order
摘 要:本文根据金属硫化矿物-水系热力学平衡原理,探讨了金属硫化矿床氧化带中所发生的电化学作用,提出了金属硫化矿物交代反应的电位序:HgS→Ag2S→Cu2S→CuS→Cu5FeS4→CuFeS2→FeS2→CdS→PbS→Bi2S3→ZnS→NiS→CoS→FeS→MnS。硫化矿床氧化带所揭露的大量实际地质资料可用该电位序得到圆满解释。
Abstract: Based on the equilibrium principle in the thermodynamics of metal sulphideminerals-water system,the electrochemical behavior is studied in the oxidation zoneof metal sulphide deposits and a potential order,HgS→Ag2S→Cu2S→CuS→Cu5FeS4→CuFeS2→FeS2→CdS→PbS→Bi2S3→ZnS→NiS→CoS→FeS→MnS,is established formetasomatic reaction in sulphide minerals.With this potential order,reasonable explanations can be given to variousgeological data from practical investigations in field.