冀东冷口金成矿带“长城式”金矿成矿作用研究  

Study on the"Great Wall Type"Gold Mineralization in the Lengkou Gold Metallogenic Belt of Eastern Hebei

作　　者：杨爱雪 许曼 孙仲坤 吕水 刘海龙[1] 吴再忠 丁萍 YANG Ai-xue;XU Man;SUN Zhong-kun;LV Shui;LIU Hai-long;WU Zai-zhong;DING Ping(The Fifth Geological Brigade of Hebei Bureau of Geology and Mineral Resources(Hebei Marine Geological Environment Survey),Tangshan 063000,China)

机构地区：[1]河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心),河北唐山063000

出　　处：《河北地质大学学报》2024年第2期21-29,共9页Journal of Hebei Geo University

基　　金：河北地质矿产勘查开发局科研项目(13000022P00329410103R);河北地质矿产勘查开发局科研项目(454-0601-YBN-FAA0)。

摘　　要：冀东地区燕山期开始进入了幔枝构造发育期,冀东幔枝构造的形成控制大规模的岩浆侵入活动和金成矿作用。沿冷口断裂带分布着多个“长城式”金矿,主要受外围拆离滑脱带控制,属于构造控矿,主拆离滑脱带为金成矿流体的运移提供了通道,次级拆离滑脱带、层间滑动带及盖层岩石中的裂隙、节理等为成矿物质富集提供了富集空间,有向深部厚度变大的特点,为远程低温热液型矿床,肖营子花岗岩浆为金成矿提供了部分成矿物质。Since the beginning of the Yanshan period,the eastern Hebei has entered the stage of mantle branch structure activity,and the mantle branch structure in eastern Hebei has controlled large-scale magmatic intrusion activities and gold mineralization.There are several"Great Wall type"gold deposits along the Lengkou Fracture Zone,which are mainly controlled by the peripheral detachment slip zone and belong to structure control of ore,the main detachment slip zone provides a channel for the transport of gold-forming fluids,and the secondary detachment slip zone,interlayer slide zone and fractures and joints in the cover rocks provide enrichment space for the mineralized material,with the characteristics of increasing thickness to the deep.It is a remote lowtemperature hydrothermal deposit,and the Xiaoyingzi granite magma provides part of the mineralized material for gold formation.

关 键 词：幔枝构造 成矿作用 地质特征 地球化学特征 “长城式”金矿 冀东 

分 类 号：P612[天文地球—矿床学]