中文摘要：

紫金山金铜矿属典型的高硫化型浅成低温热液矿床。黄铁矿的电子探针（EPMA）测试和S同位素分析显示，该区黄铁矿总体表现为亏Fe富s型，S／Fe原子比从浅部到深部呈现升高的趋势，表明深部成矿是高氧-高硫化环境；黄铁矿的Ni-co图解、As-c0-Ni三角相图解及似（Se），W（s）／W（Se）标型特征显示，其是与火山作用有关的热液成因；该区黄铁矿是原生金的主要载金矿物，Au是以纳米级自然金（Au^0）的形式存在的；黄铁矿的W（Cu＋Pb＋Zn）从浅部到深部呈逐渐增加的趋势；黄铁矿微量元素的lga-lgb成正相关关系；黄铁矿的微量元素综合比值Ф从浅部到深部呈逐渐降低的趋势；黄铁矿的S同位素结果表明，其δ34S值介于-3．0％o～3．5％o之间，极差为6．50％o，平均值为-0．18％o，S主要来源于深部岩浆。根据其化学成分标型特征，总结该矿床的产出环境、热液及成矿物质来源等成因信息，并对高硫化型浅成低温热液矿床中黄铁矿的化学成分标型提供一定的研究基础。

英文摘要：

Zijinshan Gold-copper deposit is attributed to the typical high- sulphidation epithermal deposit. The electron microprobe （EPMA） test and sulfur isotope analysis of pyrite shows that the pyrite is generally sulfur-rich and iron-deficiency type in this area. From shallow to deep, the S/Fe atomic ratio showed increasing trend. It indi- cated a metallogenie environment of highly acidic with high oxygen and sulfur fugacity. The Ni-Codiagrams, As-Co- Ni ternary phase diagrams and standard type features of w （Se） and w （S）/w （Se） indicated that the pyrite is hydro- thermal related to volcanism. Pyrite of this area is the contained gold mineral, the occurrence of gold in pyrite exists in nanoscale particle form w （ Cu ＋ Pb ＋ Zn） of pyrite tends to gradually increase from shallow to deep. The trace elements lga-lgb of pyrite was positive correlation. The comprehensive trace element ratios Ф of pyrite was gradually decreased from shallow to deep. The sulfur isotope analysis results of pyrite showed the δ34S value from -3.0%o to 3.5%o,with a mean of 6.50%o and average of -0.18%o,which are similar to the magmatic sulfur. According to the typomorphic characteristics of the chemical composition, the environment of the deposit, the causes information, such as the hydrothermal,the mineral sources, etc. are summarized. It also provides certain research bases in the study of the typomorphic characteristics of pyrite composition in the high sulphidation type epithermal gold-copper deposit.