焦家断裂带南部覆盖区控矿构造带的研究及成矿前景分析

Reserch and Mineralization Prospection Analysis on Ore-controlled Tectonic Belts in South Coverage Areas of Jiaojia Fault Belt

摘要:

胶东西北部龙口莱州断裂带南段的朱宋朱桥段,俗称焦家断裂带，是胶东西北部三大控矿构造之一，相继勘查评价了焦家、新城、河西、河东、东季、马塘、望儿山、寺庄等一系列特大型、大型以及中小型金矿床，资源潜力巨大。由于焦家断裂带南段（寺庄以南）被第四系覆盖而去向不明，因此目前对焦家断裂带南延的位置争议较大。根据近年来在该区开展的一系列综合物探研究工作，初步建立了焦家主干断裂带南部覆盖区的断裂构造格架，认为其中F8（徐村院沟北王）断裂为焦家断裂的南延段，并对南部覆盖区的成矿前景进行了分析探讨。

Abstract:

Zhusong-Zhuqiao section located in south of Longkou-Laizhou flaut belt in northwest Jiaodong area is commonly known as Jiaojia fault belt. It is one of the three largest ore-controlled tectonic structures in northwest Jiaodong area. A series of super large, large and small to medium size gold deposits have been continually explorated and evaluated, such as Jiaojia gold deposit, Xincheng gold deposit, Hexi gold deposit, Hedong gold deposit, Dongji gold deposit, Matang gold deposit, Wangershan gold deposit and Sizhuang gold deposit, etc. Their resource potentiality is tremendous. The south section(from Sizhuang) of Jiaojia fault belt is lost because of covering by quaternary. The location of south setion is disputed. In this paper, according to a series of recent comprehensive geophysical work, tectonic framework in south coverage area of Jiaojia fault belt has been preliminarily established. It is regarded that F8(Xucunyuan-Goubeiwang) fault is the south section of Jiaojia fault belt. The mineralization propect of this covered area is analyzed and studied.