焦家断裂带紫罗姬家以南的延伸问题探讨

Discussion on Extension of Jiaojia Fault Zone in South of Ziluojijia Village

焦家断裂带是胶西北地区三大著名的金成矿带之一，一般认为焦家断裂带为龙（口）莱（州）断裂带南段的高家庄子紫罗姬家段。根据近几年的研究成果，认为焦家断裂带在紫罗姬家以南，沿195＆#176;～200＆#176;方位延伸至紫罗綦家与黄家之间分为3支：第一分支沿紫罗綦家—赵官庄—前单家—张家埠至曹家埠村北；第二分支（主断裂带）沿紫罗綦家村东南—大尹家—西尹—西罗台村南至曹家埠村南；第三分支自紫罗綦家与黄家村之间向南延伸至史家村西之后，再向南去向不明，推测逐渐尖灭的可能性较大。

Jiaojia fault zone is one of three well -known gold metallogenic belts in northwestern Jiaodong area.It is generally considered as Gaojiazhuangzi -Ziluojijia section in the southern part of Longkou -Laizhou fault belt.Ac-cording to the research results in recent years,it is considered that Jiaojia fault zone extends to the south of Ziluoji-jia along the orientation of 195＆#176;~200＆#176;,whereas it is divided into three branches between Ziluoqijia and Huangjia village.The first branch passes through Ziluoqijia,Zhaoguanzhuang,Qiandanjia,Zhangjiabu and the north of Cao-jiabu.The second one,as the main fault zone,crosses along the southeast of Ziluoqijia,Dayinjia,Xiyin,south of Xiluotai village,till to the south of Caojiabu.The third starts from between Ziluoqijia and Huangjia village,exten-ding southwards to the west of Shijia village.Then the track of Jiaojia fault zone becomes unclear across through far-ther south area.It is regarded that gradual pinchout is possible.