河铀-铍矿田成矿规律及预测毕业论文.doc

东华理工大学长江学院 毕 业 论 文 题 目 新疆白杨河铀－铍矿田成矿规律及预测 英文题目 Xinjiang Poplar River uranium beryllium ore field metallogenic regularity and prediction of 学生姓名 熊克清 学 号 专 业 资源勘查工程 系 别 资源勘查工程系 指导教师 严兆彬 职 称 讲师 二零一二年六月 摘 要 雪米斯坦火山岩带是新疆规模最大的铀－稀有金属成矿带之一，成矿带长约120km，由白杨河铀－铍矿田及雪米斯坦工区、七一工区、十月工区、阿尔肯特矿点和一批异常点组成，区域上主干大断裂控制了矿床、矿点、矿化点的分布，次级断裂及岩体界面、熔岩层面是具体矿化的赋存部位，成矿特征具一定的相似性，而其中的白杨河铀－铍矿田是铀－铍矿化最集中的地区，研究其成矿规律，对区域找矿具一定的借鉴意义。白杨河矿田主要铀、铍矿体受次火山岩体顶、底界面控制，呈似层状，与铀矿化有关的蚀变主要为赤铁矿化、紫黑色萤石化和锰矿化，与铍矿化有关的蚀变主要为萤石化、碳酸盐化和硅化，成矿期至少经历了铀矿化、铀－铍矿化、铍矿化三个阶段。通过成矿规律研究，认为白杨河铀－铍矿田寻找800m以上深部矿体的主攻地区为四号工地东部，白杨河以东地区找矿要从地表受裂隙控制的次要矿体入手，重点寻找深部受熔岩控制的层状矿体。 关键字：雪米斯坦火山岩带； 白杨河铀－铍矿田； 成矿预测 ABSTRACT Snow millsstein volcano rock band Xinjiang is the largest uranium metallogenic belt is one of the rare metal mineralization belt, the length of about 120km, by the river of uranium a alteration mainly fluoritization, carbonation and silicification, metallogenic period nd beryllium ore field and snow millsstein area, the seven one work area, October work area, the Kent area in the mine and a number of abnormal points, regional trunk fracture control ore deposits, ore, mineralization points distribution, secondary fracture and rock interface, the lava level is specific mineralization occurring position, ore characteristics have a certain similarity, and the Poplar River uranium mineralization of uranium and beryllium beryllium ore field is the most concentrated area, study the metallogenic law, for the regional prospecting has certain reference significance. Poplar River field main uranium, beryllium ore body is controlled by a volcano rock top, bottom interface control, stratoid, related to uranium mineralization alteration mainly hematitization, violet black fluoritization and manganese mineralization, and beryllium mineralization related through at least uranium mineralization of uranium mineralization, beryllium, beryllium mineralization in three stages. Thr