摘要
吉林省集安市腰营晶质石墨矿赋存在集安岩群荒岔沟岩组三段(Pt_(1)h^(3).)中,总体呈似层状、透镜状产出。矿体整体由向斜构造控制,在向斜核部及近核部两翼呈对称分布。矿床规模属中型,矿石自然类型为石墨透辉变粒岩,矿石质量较好。矿床成因类型为区域变成型矿床。地层控矿为研究区核心控矿因素,区域变质作用是研究区主要的控矿因素,褶皱构造影响了矿体的分布形态,古元古代斜长花岗岩(γοPt_(1))加强了研究区的混合岩化作用。通过对研究区晶质石墨矿的地质特征、成矿地质背景、矿床成因及控矿因素的系统分析,构建了集安市腰营晶质石墨矿矿床成矿模式。本研究成果为该区域晶质石墨矿找矿提供了理论支撑。
The Yaoying graphite deposit in Ji'an City,Jilin Province,is located in the third member of the Huangchagou Group(Pt_(1)h^(3))of the Ji'an Rock Series.It is generally distributed in a pseudo-layered and lens-shaped pattern.The ore bodies are controlled by a syncline structure,with symmetrical distribution on both wings near the core.The deposit is of medium size,and the natural type of ore is graphite amphibole granulite,with good ore quality.The genesis type is a regional metamorphic deposit.Stratigraphic control is the core ore-controlling factor in the study area,and regional metamorphism is the main ore-controlling factor.Fold structures have influenced the distribution pattern of the ore body.The Paleoproterozoic plagioclase granite(γοPt_(1))has strengthened the migmatization in the study area.Through a systematic analysis of the geological characteristics,geological background,genesis and ore-controlling factors of the Yaoying graphite deposit,a genesis model of the deposit has been constructed.The research results provide theoretical support for the exploration of crystalline graphite in this area.
作者
程绍恒
王旭
马骏驰
马雪
马晶
CHENG Shao-heng;WANG Xu;MA Jun-chi;MA Xue;MA Jing(Jilin Branch of China National Geological Exploration Center of Building Materials Industry,Changchun 130000,China)
出处
《中国非金属矿工业导刊》
2025年第6期40-45,64,共7页
China Non-Metallic Minerals industry
基金
吉林省地质勘查基金项目“吉林省集安市腰营晶质石墨矿普查”(编号:[2013]地勘8-5,[2017]地勘续2-7)。
关键词
晶质石墨
地质特征
控矿因素
成矿模式
吉林
crystalline graphite
geological characteristics
ore-controlling factors
genesis model
Jilin province
