【作者】 邓国幸；

【导师】 胡斌；

【作者基本信息】 中南大学 ， 构造地质学， 2010， 硕士

【摘要】 陶金坪金矿地处湖南省溆浦县,大地构造位置位于元古代扬子板块江南古岛弧带西段,雪峰弧形韧性剪切带中段,区内出露地层主要为新元古界板溪群五强溪组上段(Ptbnw2),金、锑、砷矿化主要产于其中。本论文从研究区的区域成矿地质背景分析入手,应用岩石学、构造地质学、矿床学、元素地球化学、矿床地球化学等多学科知识,对于陶金坪金矿成矿地质条件、矿床地质特征、成矿元素地球化学特征、控矿因素与成矿规律等内容进行了深入系统的研究,取得了如下主要认识：1.存在有利的大地构造位置,利于Au、Sb、As等元素的成矿。2.As、Sb、Au次生晕异常呈NE向展布,明显受断裂破碎带控制,分布范围与矿脉1(V1)和矿脉2(V2)基本吻合,带内石英脉发育,含矿性受到构造带的破碎强度和石英脉发育程度的制约。3.重点确定了陶金矿金矿南江坪矿区的找矿靶区,通过钻探工程验证,显示该区构造控矿显著,在陶金坪金矿存在剪切带型金矿成矿构造带,且构造带成群成组出现,至少可以确定存在两条NE向蚀变破碎带V1和V2及其中四层以上平行排列的金矿(化)体。4.研究区的成矿规律和找矿标志表明本区具有良好的找矿前景。更多还原

【Abstract】 Taojinping gold deposit in Xupu, Hunan province, the geotectonics is located in Proterozoic era Yangtze plate in the south western part of the ancient island arc belt, mid-arc shear zone of Xuefeng arcuate belt.The strata expose mainly in the Neoproterozoic Erathem upper Banxi Group Wuqiangxi Group(Ptbnw2), Au, Sb and As mineralization mainly originate in it.On the basis of analyzing the ore-forming geological backgrounds of the study area, in combination with the key-knowledges on petrology, tectonics, ore mineralogy, elements geochemistry, deposits geochemistry, and so on, the author has done deeply researches on the ore-forming conditions, geological characteristics, geochemical features of ore, causes of Taojinping gold deposit, ore-controlling factors and laws of mineralization. The main achievements are as follows:1.There is a favorable tectonic location, conducive to Au, Sb, As and other elements of the mineralization.2.As, Sb, Au element of the secondary aberrant halos show that the north-east veins of the distribution, abnormal distribution was controlled by fracture zone, with vein 1 (V1) and vein 2 (V2) of basic coincidence. The fracture zone is development of quartz veins, the ore-bearing is restricted by the crushed zone with strength and the development of quartz veins.3.Nanjiangping prospecting target was focused on identified in Taojinping gold deposit.Through implementation of the drilling engineering, the area indicates a significant structural control. There is a type of shear zone gold ore tectono-mineralized belts in Taojinping gold deposit and the structural belts appear in groups, determine the existence of at least two north-east to the alteration crushed zone of V1, V2 and a number of nearly parallel gold ore body.4.Minerogenetic regularity of the study area and prospecting criteria indicate that this area has a great prospect.更多还原