中文摘要:吉林延边地区为我国滨太平洋带的一个重要的金属成矿区。与中生代火山-次火山-侵入活动有关的斑岩型-浅成热液型矿床在时空上、成因上构成一个成矿系列。本文选择四个代表性矿床（小西南岔、闹枝、五凤和刺猬沟），较详细地介绍它们的成矿地质背景、矿床地质特征、流体包裹体、稳定同位素及成矿机制等。通过这些矿床的描述，勾画出一幅从中生代火山盆地边缘的隆起带的斑岩型矿床（小西南岔）→中生代火山盆地内部的断隆块的斑岩-浅成热液过渡型矿床（闹枝）→中生代火山盆地内部断裂带的浅成热液型矿床（五凤和刺猬沟）的全景。
Abstract:Yanbian area of Jilin is an important metallogenic province in the circum-Pacific belt of China. Spatially and genetically, the porphyry-epithermal copper-gold deposits related to Mesozoic volcanic-subvolcanic-intrusive activities make up a metallogenic series. Exemplified by four typical ore deposits, namely, Xiaoxinancha, Naozhi, Wufeng and Ciweigou, the present paper deals with geological characteristics and ore-forming mechanism of this metallogenic series. The Xiaoxinancha copper-gold deposit, a deposit of porphyry type, occurs in the upwarped zone on the margin of the Mesozoic volcanic basin; mineralization is controlled by concealed Yanshanian granite porphyry and diorite porphyrite dike, with the major mineralized bodies present in Variscan diorite at the top of the concealed granite porphyry body and in Lower Paleozoic biotite felsic hornfels; the temperature and the salinity of the ore fluids vary in the range of 100~550℃ and 27.9～56 wt% NaCl respectively, suggesting that the ore fluids are mainly magmatic water, mixed with some subordinate meteoric water. The Naozhi gold (copper) deposit, being of porphyry-epithermal transitional type, occurs in the uplifted district within the Mesozoic volcanic basin; mineralization is controlled jointly by faults and Yanshanian subandesite porphyrite, with the major mineralized bodies existent in Variscan granodiorite; the temperature and the salinity vary in the range of 150~450℃ and 0.8～50 wt% NaCl respectively, implying that both magmatic water and meteoric water make up remarkable proportion, The Wufeng and Ciweigou gold deposits, belonging to epithermal type, occur in the interior of the Mesozoic volcanic basin; mineralization is controlled by faults, and the major mineralized bodies exist in Mesozoic volcanic rocks, with the deep mineralized body extending to the basement rock; the temperature and the salinity of ore fluids are 100~400℃ and 0.2～5.5 wt% NaCl respectively, suggesting that meteoric water plays a dominant role and magmatic water is less important; the metallogenic position corresponds to the discharge system of the geothermal spring.
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基金项目:国家自然科学基金（49070102）
引用文本：
芮宗瑶，张洪涛，王龙生，陈仁义，金伯禄，金逢洙，万玉胜，周永昶，孟庆丽.1995.吉林延边地区斑岩型-浅成热液型金铜矿床[J].矿床地质,14(2):99~126.1995.Porphyry-epithermal copper-gold deposits in Yanbian area, Jinlin Province[J].Mineral Deposits14(2):99~126
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