【作者】 周伟；

【导师】 李碧乐； 薛明轩；

【作者基本信息】 吉林大学 ， 地质工程（专业学位）， 2017， 硕士

【摘要】 本文以浅成低温热液型金矿为重点研究对象,通过成矿地质体、成矿构造和成矿结构面、成矿作用等方面的研究,结合必要的大比例尺专项地质填图及物化探工作,构建找矿预测模型,开展找矿预测研究,强化成果应用,及时为深部勘查工程布置提供合理化建议,以整装勘查区为单元,编制系列基础图件。东安岩金矿区为伊春—延寿成矿带北部重要的岩金矿区,现已发现7个矿体群,都集中于东安矿区的西矿带,而东矿带因第三系孙吴组覆盖面积较大,但东矿带的成矿地质条件与西矿带相似,与成矿密切的潜火山岩和热液蚀变发育,具有很大的找矿潜力。本次工作主要利用地质、物化探综合手段对该区地质特征、成矿地质条件及矿体的规模、形态、产状和质量情况深入研究,从而提出进一步详查的建议和依据。本文以东安金矿为重点工作区,开展矿床地质特征研究,厘定成矿地质体、成矿构造和成矿结构面,总结成矿作用特征标志,构建找矿预测模型,预测矿体空间位置,提出勘查工程布置建议。深化总结火山岩型铅锌银矿、金(铜)矿找矿预测研究,建立相关矿床“三位一体”找矿预测地质模型。为深部找矿作成矿预测依据。为东安金矿区深部找矿提供最佳靶区。更多还原

【Abstract】 The paper focuses on the study of epithermal gold deposit,through the characteristics of ore-forming geological body,ore-forming structure and mineralization,combined with the large scale special geological mapping and geophysical work,to construct prospecting prediction model and strengthen the application of results.The popose is provide rationalization advise for deep exploration project.A series of basic will also be compiled based on the exploration unit.Dong’an gold deposit is located in the northern part of Yichun-Yanshou metallogenic belt.Seven ore-body groups have been found in the westeren region of the gold mining area,but few ore-bodies have been found in the east as the cover of Tertiary Sunwu group.The western and esatern regions both have the similar ore-foming geological conditions,extensively developed sub-volcanics and hydrothermal alteration related to mineralization.,the propecting potential is huge.This work examines the geological characteristics of deposit,ore-forming geological conditions and the size,shape,occurrence of the ore bodies according to the methods of geological,geophysical and geochemical prospecting,providing further detailed advice and basis.In this paper,the Dong’an gold deposit is the key working area,the geological characteristics of the deposit are studied,the metallogenic geology and the ore-forming structure are determined,the metallogenic features are summarized,according to construct the prospecting model and predict space position of orebodies,providing advise for exploration project.In this paper,we summarized the prediction study of volcanic-type lead-zinc-silver deposit and gold(copper)deposit and established the "three-in-one" prospecting prediction geological model of related deposits to provide a metallogenicprediction for the deep ore prospecting and the best target areas for Dong’an deposit.更多还原