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由长春地质学院和吉林省地矿局第三地质主调查所共同完成的放牛沟硫铁多金属矿床地球化学特征及地球化学模型研究成果,于1989年11月中旬通过部级鉴定。其主要成果是:1.从成矿地质背景分析入手,把矿床环境研究与主要成矿元素及伴生元素的迁移,演化与地质作用有机的结合起来,在确定元素初始含量的基础上,研究了元素聚集分散与成矿成晕的关系。2.对矿床原生晕的成晕机制,成矿成晕物质来源进行了深入研究,探化了矿床成因及成矿规律的认识。3。总结了矿石和主要矿物地球化学特征,通过硫、铅、氧和碳的稳定同位素的研究,对矿床成因、物质来源及矿床的评价等提供了地球化学标志和准则。4.总结了矿床三度空间范围内原生地球化学特征和分带规律,提出了分带指数及各项评价指标。5.总结了汞量测量方法对寻找和评价本类型矿床的有效性,为今后开展类似矿床的普查找矿提供了技
Geochemical characteristics and geochemical model research results of the Fang Niugou sulfur-iron polymetallic deposit jointly completed by the Changchun Geological College and the Third Geological Survey of the Geological and Mineral Resources Bureau of Jilin Province passed the ministerial level appraisal in mid-November 1989. The main results are as follows: 1. Starting from the analysis of metallogenetic geological background, combining the research of deposit environment and the migration, evolution and geological effects of the major ore-forming elements and associated elements, on the basis of determining the initial content of elements, Relationship Between Element Agglomeration and Disintegration and Formation Halo. The origin mechanism of the primary halo of the deposit and the source of metallogenetic halogens have been deeply studied, and the cognition of genesis and metallogenic regularity has been explored. 3. The geochemical characteristics of ores and major minerals are summarized. Geochemical indications and criteria are provided through the study of stable isotopes of sulfur, lead, oxygen and carbon, and their origin, source of material and evaluation of ore deposits. 4. Summarized the primary geochemical characteristics and zonation regularity within the third dimension of the ore deposit, proposed zonation index and various evaluation indexes. Summarizes the mercury measurement methods to find and evaluate the validity of this type of deposit, for the future prospecting similar ore prospecting provides technical