胶东金矿集中区构造控岩控矿地质特征研究  

Geological Characteristics of Rock-controlling and Ore-controlling Structures in the Jiaodong Gold Ore Concentration Area

作　　者：吕古贤[1] 郭涛[1] 舒斌[1] 申玉科[1] 刘杜鹃[1] 周国发[1] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081

出　　处：《地球学报》2006年第5期471-478,共8页Acta Geoscientica Sinica

基　　金：国家计委科技找矿项目(编号:GJ947110);国家科委基础司项目(编号:国科高[1994]83号);国土资源部科技发展计划重点项目(编号:2002201);中国地质调查局地质调查项目(编号:200110200104;200110200026);国家重大基础研究项目(编号:G1999143214)联合资助。

摘　　要：本文对胶东构造体系进行了进一步划分,指出胶东中生代主要发育新华夏体系和华夏式构造系,而纬向构造体系,即EW向构造不发育的资料。在此基础上,对胶东金矿集中区构造控制矿带、矿床、矿脉、地球化学分布和物理化学条件等不同层次特征加以分析,提出的胶东金矿成矿期构造具有多层次控矿特点,新华夏系NEE向(泰山式)伴生构造控制胶东区域金矿带的展布;新华夏系NNE向区域剪切带控制金矿田产生部位;构造带断裂性质控制金矿矿床类别;构造断裂带的产状控制矿床矿体的倾伏侧伏规律;剪切构造两盘的运移特点和断裂组合形式控制矿脉的分布规律;构造变形岩相带控制的构造地球化学特征;构造控制成矿物理化学条件等认识。This paper made a further division of the Jiaodong tectonic system, and pointed out that the main well-developed tectonic systems in Jiaodong are Neocathaysian and Cathaysian tectonic systems rather than the latitudinal tectonic system. On such a basis, the authors analyzed different characteristics of ore belts, deposits, ore veins, geochemical distribution and geophysical-chemical conditions in the Jiaodong gold ore concentration area. It is held that the structures have multi-level ore-controlling characteristics at the ore-forming epoch. The NNE-trending Neocathaysian associated structures control the distribution of regional gold belts, the NNE-trending Neocathaysian regional shear belt control the gold ore field, the faulting conditions of the tectonic belt control the types of gold deposits, the attitude of the tectonic belt controls the pitching and rake regularities of the ore bodies in ore deposits, the moving property of the shear belt and the combination forms of faults control the distribution of ore veins, the tectono-deformed belts control the geochemical characteristics, and structures control the physical-chemical conditions for mineralization.

关 键 词：胶东金矿 构造多层次控矿 构造地球化学 构造物理化学 

分 类 号：P5[天文地球—地质学]