河北省青龙满族自治县爬豆沟金矿床地质特征及成因分析

Geological characteristics and genesis of Padougou gold deposit in Qinglong Manzu Autonomous County,Hebei Province

爬豆沟金矿床位于冀东北遵化-青龙金矿带北东段,笔者对研究区金矿成矿地质特征、找矿标志及成因进行了较为系统的研究。研究表明本区金矿床成因类型为受构造控制的中低温热液裂隙充填含金石英脉型金矿;矿化(体)蚀变带的形成与构造-岩浆活动作用关系最为密切,金矿的原始矿源层为双山子群,原始矿源层在元古宙-古生代构造-岩浆活化作用下金元素逐步富集形成中间-直接矿源层,在燕山期构造-岩浆作用下,含矿流体运移和上升过程中充填于同时期或稍晚阶段形成的构造裂隙中形成矿体,矿体的分布和形态受控于这些低级序的构造裂隙。

The Chongdougou gold deposit is located in the northeast section of the Zunhua Qinglong gold deposit belt in northeastern Hebei.The author has conducted a systematic study on the geological characteristics,prospecting criteria,and genesis of gold mineralization in the study area.Research has shown that the genetic type of gold deposits in this area is a medium to low temperature hydrothermal fissure filled gold bearing quartz vein type gold deposit controlled by structure;The formation of the mineralization(body)alteration zone is most closely related to the tectonic magmatic activity.The original source bed of the gold mine is the Shuangshanzi Group.The original source bed gradually enriched the gold element under the Proterozoic Paleozoic tectonic magmatic activation to form an intermediate direct source bed.Under the Yanshanian tectonic magmatic action,the ore bearing fluid filled in the structural fractures formed at the same time or a later stage during the migration and rising process to form an ore body,The distribution and morphology of ore bodies are controlled by these lower order structural fractures.