胶东金翅岭金矿构造控矿规律及找矿预测

金翅岭金矿是胶东招远北部的一个典型石英脉型金矿,构造是金矿最为重要的控矿因素。在前人资料的基础上,综合分析了矿区构造控矿特征,总结了构造控矿规律:矿脉分支复合,表现为NE向矿脉产生SN,NNE向次级矿脉,NNE向矿脉产生NE向次级矿脉;矿体厚度与金品位呈负相关,深部次级矿脉群在P4脉下盘出现;矿脉侧伏角和倾伏向变化处矿体富集,表现为SW向侧伏的P4矿脉,矿体富集于-240 m,侧伏角变大,同时倾伏向由SW向转变为NW向的部位。最后建立了平面和剖面P4矿脉的波形函数,并对深部进行了预测。

Ore Controlling Rule and Ore Predication of Jinchiling Gold Deposit in Jiaodong Area

Jinchiling gold deposit is a typical quartz vein type gold deposit in northern Zhaoyuan city in Jiaodong area. Structures are the most important ore controlling factors for gold deposit. On the basis of previous data and comprehensive analysis of ore-controlling characteristics, structural ore controlling regularity has been summarized as follows: veins have the characteristics of branch and composite, secondary veins with the trend of SN and NNE produced in the vein with the trend of NE, secondary vein with the trend of NE produced in the ore vein with the trend of NNE; thickness of ore body and the gold grade is negative correlation, deep secondary veins group appeared in the lower part of P4 vein; ore bodies enriched in changing positions of plunge angle and pitch direction, orebodies of P4 vein with the trend of SW enriched in the depth of -240m, plunge angle became greatly, and plunging direction changed from SW trend to NW trend. Finally, the plane and profile wave function of P4 vein have been established, and the deep forecast has been carried out.