胶东金矿集中区深部结构研究进展  

Research progress on the deep structure of Jiaodong gold deposit concentration area

作　　者：侯爵 武澄泷 俞贵平 徐涛[2,5] 艾印双[3,5] HOU Jue;WU ChengLong;YU GuiPing;XU Tao;AI YinShuang(Institute of Geophysics,China Earthquake Administration,Beijing 100081,China;State Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,Chinese Academy of Science,Beijing 100029,China;Key Laboratory of Earth and Planetary Physics,Institute of Geology and Geophysics,Chinese Academy of Science,Beijing 100029,China;University of Chinese Academy of Science,Beijing 100049,China;Innovation Academy for Earth Science,CAS,Beijing 100029,China;College of Earth Sciences,Guilin University of Technology,Guilin 541004,China)

机构地区：[1]中国地震局地球物理研究所,北京100081 [2]中国科学院地质与地球物理研究所,岩石圈演化国家重点实验室,北京100029 [3]中国科学院地质与地球物理研究所,地球与行星物理重点实验室,北京100029 [4]中国科学院大学,北京100049 [5]中国科学院地球科学研究院,北京100029 [6]桂林理工大学地球科学学院,桂林541004

出　　处：《地球物理学进展》2022年第3期952-963,共12页Progress in Geophysics

基　　金：国家重点研发计划项目(2109YFA0708602,2016YFC0600101);国家自然科学基金(42130807)联合资助。

摘　　要：华北克拉通东部金矿床与克拉通破坏作用具有密切的时空与成因联系,也被称之为“克拉通破坏型金矿床”.普遍认为华北克拉通破坏与“克拉通破坏型金矿床”成矿作用发生的主要动力背景为古太平洋板块向欧亚大陆下的西向(现今方位)俯冲引发的地幔非稳态流动,即矿床的形成受克拉通破坏过程中的深部作用过程控制.胶东是目前我国最大的金矿集区与黄金生产基地,也是“克拉通破坏型金矿床”成矿模式建立的最典型地区.为揭示这克拉通破坏过程中深部作用过程及其对金成矿的控制作用,前人运用不同方法,在该区开展了大量的地球物理探测研究,取得了丰富成果,但是上述成果多为分散的、局部的,尚缺乏系统性认识.鉴于此,本文根据近年来的探测结果,系统总结了胶东金矿集中区及邻区深部结构特征,包括岩石圈各圈层结构及壳幔各向异性与流变学特征等,以期对全面深入认识“克拉通破坏型金矿”成矿系统及深部找矿突破等提供重要参考.The gold deposits in the eastern North China Craton are closely related to craton destruction in time,space and origin,and are also known as“Decratonic gold deposits”.It is generally believed that the main dynamic background for the North China Craton destruction and the mineralization of the“Decratonic gold deposits”is the unsteady flow of the mantle caused by the westward(present-day azimuth)subduction of the paleo-Pacific plate under the Eurasian continent.This means that the formation of the gold deposits was controlled by deep processes during the craton destruction.Jiaodong is currently the largest gold ore concentration area and gold production base in China.It is also the most typical area where the metallogenic model of the“Decratonic gold deposits”was established.In order to reveal the deep dynamic process and its controlling effect on gold mineralization during the destruction of this craton,a large number of geophysical exploration studies by using different methods have been carried out in this area,with abundant achievements acquired,but these results are mostly scattered,local and lacking in systematic understanding.Therefore,based on the detection results in recent years,this paper systematically summarizes the deep structural characteristics of the Jiaodong gold-concentrated area and its adjacent regions,including the lithosphere structure,crust-mantle anisotropy and rheological characteristics,etc.It will provide an important reference for understanding the metallogenic system of the“Decratonic gold deposits”and breakthroughs in deep ore prospecting.

关 键 词：胶东金矿 岩石圈结构 地壳结构 浅部结构 壳幔各向异性 

分 类 号：P315[天文地球—地震学]