【摘要】：研究區(qū)一級構造單元位于武夷山云開褶皺帶中,政和-大浦斷裂帶西側,屬武夷山成礦帶永梅坳陷煤、鐵、錳、銅、金多金屬成礦亞帶,是永(安)-梅(縣)-會(昌)多金屬成礦帶的組成部分,也是中國東南部重要成礦集中區(qū)。在構造上經(jīng)歷了晉寧期結晶基底形成階段、加里東期變質(zhì)褶皺基底形成階段、海西-印支期沉積蓋層形成階段、燕山期大陸邊緣活動階段等四大演化階段。區(qū)內(nèi)蘊藏著豐富的Fe、Mn、Cu、Pb、Zn、Au、Sn等多金屬礦產(chǎn),具有良好的找礦前景。通過在福建古田地區(qū)開展1:5萬水系沉積物地球化學測量工作,圈定了27處水系沉積物綜合異常,其中甲類異常6處,乙類異常18處,丙類異常3處。優(yōu)選了8處綜合異常開展了土壤地球化學測量和巖石地球化學測量工作,初步查明和分析了元素在不同地質(zhì)子區(qū)的水系、土壤、巖石中的分布和富集特征,并重點從地質(zhì)、地球化學、礦化體特征等方面,闡述了具代表性的5處水系沉積物異常,為區(qū)域找礦指明了方向和圈定成礦遠景區(qū)提供了依據(jù)。圈定成礦靶區(qū)11處,其中A類靶區(qū)8處,B類靶區(qū)3處。
[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.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P632;P612

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本文編號：2318096