【作者】 邓华波；

【导师】 王根厚；

【作者基本信息】 中国地质大学(北京) ， 构造地质学， 2012， 硕士

【摘要】 按照板块构造观点，研究区位于西伯利亚板块与哈萨克斯坦-准噶尔板块的碰撞缝合部位，额尔齐斯挤压带系西伯利亚板块与哈萨克斯坦板块的碰撞缝合线，主体位于东准噶尔北部。区域地质显示东准噶尔北部在早古生代以前属古亚洲板块的一部分，为稳定大陆边缘，至少从早奥陶世开始，形成了分割准噶尔板块与阿尔泰地块的准噶尔洋，并发生了俯冲、碰撞、增生等过程，并于晚古生代期间逐渐闭合。闭合后，准噶尔地区逐渐进入后碰撞造山演化阶段，以碰撞深成岩浆活动为特征。因此区内构造活动复杂，海西期的火山活动、岩浆作用等广泛发育。与之相关的铜、钼、金等矿产资源丰富。研究区内的哈腊苏、希勒库都克、索尔库都克铜钼矿床的铜钼矿体赋存形式、矿床地球化学特征和矿床成因等方面都存在较大差别。例如：哈腊苏铜钼矿床表现为斑岩铜矿特征，Mo元素在早期的浸染状矿化和后期脉状或裂隙充填状矿化矿石中也都达到伴生有益组分工业指标；希勒库都克铜钼矿中Mo为主要工业元素，主要附存在花岗斑岩岩体中，Cu则赋存在岩体边部和围岩接触带及矽卡岩中；索尔库都克矿体主要赋存在安山玢岩外的接触带凝灰岩中，安山玢岩也有一定铜钼矿化。因此本文主要以区域构造演化为背景，以哈腊苏、希勒库都克、索尔库都克三个铜钼矿床地质、矿床地球化学特征为线索，试图建立洋-陆转化过程与Cu-Mo组合成矿的关系。本文的研究手段为结合野外地质工作和室内工作（收集、整理、采样、实验等手段获取相关矿床的稀土、微量元素、S同位素、Sr-Nd同位素等矿床地球化学数据），以区域构造演化为背景，尝试推导成矿过程中的成矿期次、物质迁移、成矿物质来源等问题，最后建立铜钼矿床成因与该阶段的区域构造演化特征的关系。更多还原

【Abstract】 According to the view of the tectonic plates,The tectonic position of the study areais on the tectonics binding site of the Siberian plate and the Kazakhstan-Junggarplate.EErJiSi compressive belt is the Collision suture line of the Siberian plate and theKazakhstan plate,The main body is located in the north of east Junggar.Regional geologyshows that, the north of east Junggar is a part of Adop ted plate before Early PalaeozoicEra,which formd the Junggar ocean, since Lower Ordovician at least, It divided theJunggar Blocks and the Altai plots,they experienced the subduction,collision andhyperplasia processes,then closed gradually in Neopaleozoic.Then,The study areaentranced the period of post-collision,which was characterized by hypogene magmaticactivity.So, the tectonic environment is more complex, volcanic activity, magmatismwas widely developed in hercynian. Mineral resources of copper, nickel, gold areextremely rich, which show very good exploration prospects.The Modes of Occurrence of Cu-Mo orebodies,geochemical characteristic ofdeposit and ore genesis of Halasu, Xilekuduk,Suoerkuduke Cu-Mo deposit aredifferent.for example, Halasu Cu-Mo deposit manifestes as characteristics of porphyrycopper,and Mo slso reaches the industrial index in the early Disseminated ores and thelate Nervation Ores;Mo is the main industry element in xilekuduke Cu-Mo deposit,which occurrences in the granite porphyry body，and Cu ore hosting on the margin andcontact zone of the granite porphyry body; The copper body of Suoerkuduke occurrencesin tuff,which is the contact zone of andesitic porphyrite. With the regional tectonicevolution as the background,and the deposit geology, geochemical characteristics of theore deposit as the clues, the author want to establish the realationship of the ocean-landtransformation and the Cu-Mo mineralizationThe research means of this paper is combining with the field geological work andindoor work(obtain deposit geochemical data about rare earth elements, trace element, Sisotope, Sr-Nd isotopes and so on by Collecting, sorting, sampling, testing.Then theauthor attempts derivation the period of mineralizing, material migration, ore-formingmaterial source, etc,finally establishes the relationship between the ore genesis and theregional tectonic evolution.更多还原