福建上杭古田地区区域地球化学测量及找矿预测
发布时间：2018-11-08 09:40
【摘要】：研究区一级构造单元位于武夷山云开褶皱带中,政和-大浦断裂带西侧,属武夷山成矿带永梅坳陷煤、铁、锰、铜、金多金属成矿亚带,是永(安)-梅(县)-会(昌)多金属成矿带的组成部分,也是中国东南部重要成矿集中区。在构造上经历了晋宁期结晶基底形成阶段、加里东期变质褶皱基底形成阶段、海西-印支期沉积盖层形成阶段、燕山期大陆边缘活动阶段等四大演化阶段。区内蕴藏着丰富的Fe、Mn、Cu、Pb、Zn、Au、Sn等多金属矿产,具有良好的找矿前景。通过在福建古田地区开展1:5万水系沉积物地球化学测量工作,圈定了27处水系沉积物综合异常,其中甲类异常6处,乙类异常18处,丙类异常3处。优选了8处综合异常开展了土壤地球化学测量和岩石地球化学测量工作,初步查明和分析了元素在不同地质子区的水系、土壤、岩石中的分布和富集特征,并重点从地质、地球化学、矿化体特征等方面,阐述了具代表性的5处水系沉积物异常,为区域找矿指明了方向和圈定成矿远景区提供了依据。圈定成矿靶区11处,其中A类靶区8处,B类靶区3处。
[Abstract]:The primary tectonic unit of the study area is located in the Yunkai fold belt of Wuyishan, west of the Zhenghe-Dapu fault zone, and belongs to the sub-zone of coal, iron, manganese, copper, gold and polymetallic mineralization in the Yongmei depression of the Wuyishan metallogenic belt. It is an integral part of the Yongan-Mei-Hui (Chang) polymetallic metallogenic belt and an important metallogenic concentration area in southeastern China. There are four stages of tectonic evolution in Jinning period: crystalline basement formation stage, Caledonian metamorphic fold basement formation stage, Hercynian-Indosinian sedimentary cover formation stage, Yanshanian continental margin active stage. There are abundant Fe,Mn,Cu,Pb,Zn,Au,Sn and other polymetallic minerals in the area, which have a good prospecting prospect. Based on the geochemical survey of sediments of 12: 50 000 drainage systems in Gutian area of Fujian Province, 27 integrated anomalies of water system sediments have been delineated, of which 6 are Class A anomalies, 18 are Class B anomalies and 3 are Class C anomalies. Eight integrated anomalies were selected to carry out geochemistry survey and geochemistry survey in soil. The distribution and enrichment characteristics of elements in water system, soil and rock in different proton regions were preliminarily identified and analyzed. In the aspects of geochemistry and mineralized body characteristics, this paper expounds five representative water system sediment anomalies, which provide the basis for regional prospecting and delineation of metallogenic areas. Eleven ore-forming targets are delineated, of which 8 are A targets and 3 are B targets.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P632;P612
本文编号：2318096
[Abstract]:The primary tectonic unit of the study area is located in the Yunkai fold belt of Wuyishan, west of the Zhenghe-Dapu fault zone, and belongs to the sub-zone of coal, iron, manganese, copper, gold and polymetallic mineralization in the Yongmei depression of the Wuyishan metallogenic belt. It is an integral part of the Yongan-Mei-Hui (Chang) polymetallic metallogenic belt and an important metallogenic concentration area in southeastern China. There are four stages of tectonic evolution in Jinning period: crystalline basement formation stage, Caledonian metamorphic fold basement formation stage, Hercynian-Indosinian sedimentary cover formation stage, Yanshanian continental margin active stage. There are abundant Fe,Mn,Cu,Pb,Zn,Au,Sn and other polymetallic minerals in the area, which have a good prospecting prospect. Based on the geochemical survey of sediments of 12: 50 000 drainage systems in Gutian area of Fujian Province, 27 integrated anomalies of water system sediments have been delineated, of which 6 are Class A anomalies, 18 are Class B anomalies and 3 are Class C anomalies. Eight integrated anomalies were selected to carry out geochemistry survey and geochemistry survey in soil. The distribution and enrichment characteristics of elements in water system, soil and rock in different proton regions were preliminarily identified and analyzed. In the aspects of geochemistry and mineralized body characteristics, this paper expounds five representative water system sediment anomalies, which provide the basis for regional prospecting and delineation of metallogenic areas. Eleven ore-forming targets are delineated, of which 8 are A targets and 3 are B targets.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P632;P612
【参考文献】
相关博士学位论文 前1条
1 张承帅;福建马坑铁矿床地质与地球化学[D];中国地质大学(北京);2012年
相关硕士学位论文 前1条
1 孟令华;内蒙古东乌珠穆沁旗霍布仁布敦地区土壤地球化学异常信息评价[D];山东科技大学;2011年
，本文编号：2318096
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