山东国土资源2023，Vol.39Issue(11)：1-9,9.DOI:10.12128/j.issn.1672-6979.2023.11.001
胶西北金矿集区基于超壳走滑断裂构造体系的金成矿机制探讨
Study on Gold Mineralization Mechanism Based on Transcrust Strike-slip Fault Structural System in Jiaoxi Gold Concentrating Area
摘要
Abstract
The crustal structure is an important foundation for understanding the ore-forming system and conducting deep ore exploration and prediction.It is also the gold key to correctly understanding the mech-anism of large scale,short term and high intensity gold mineralization in the northwest Jiaozhou area dur-ing the Mesozoic era.In order to accurately grasp the deep structure of the gold mineralization system in the northwest of Jiaodong area,massive deep reflection seismic,magnetotelluric and gravity profile engi-neering,as well as a series of 2200～3200m deep drilling projects have been carried out in the northwest of Jiaodong area.Deep exploration profiles spanning the three main mineralization zones of Sanshandao-Jiao-jia-Zhaoping in the northwest of Jiaodong area have been obtained.Deep geological structures in the northwest of Jiaodong have been accurately revealed.Sanshandao fault zone intersects with Jiaojia fault zone in a reverse"y"shape in the deep part,and large scale transcrustral strike-slip faults and Moho sur-face fractures caused by plate subduction and compression have been discovered.A massive gold genesis model based on transcrust strike-slip fault structural system has been established.This work is of great significance for further deepening the understanding of the mechanism and ore-forming model of massive gold mineralization in the northwest Jiaodong gold mining area,and enriching and improving the ore-forming theory of Jiaodong gold deposits.关键词
金矿/深部探测/走滑断裂/成矿机制/胶西北金矿集区Key words
Gold deposits/deep exploration/strike-slip fracture/metallogenic mechanism/northwest of Jiaodong gold concentrating area分类
天文与地球科学引用本文复制引用
于学峰,田京祥,李大鹏,单伟,熊玉新,耿科,迟乃杰,陈国栋,张岩..胶西北金矿集区基于超壳走滑断裂构造体系的金成矿机制探讨[J].山东国土资源,2023,39(11):1-9,9.基金项目
本文为国家自然科学基金项目(批准号:42272104,42172094,41772076,41672084,41503038)、山东省重点研发计划项目((2022CXPT047、2023CXPT077)资助成果 （批准号:42272104,42172094,41772076,41672084,41503038）
