辽宁二道岭金矿床地质特征和矿床成因探讨  

Genesis and Prospecting Markers of Erdaoling Gold Deposit in Liaoning Province

作　　者：蔡新明 李昌松 CAI Xin-ming;LI Chang-song(Liaoning Institute Co.,Ltd.,of Mineral Exploration,Shenyang 113031,China)

机构地区：[1]辽宁省矿产勘查院有限责任公司,辽宁沈阳110031

出　　处：《有色矿冶》2020年第5期8-10,共3页Non-Ferrous Mining and Metallurgy

摘　　要：对辽宁二道岭金矿床的区域成矿地质背景和矿区地质特征进行了归纳,分析矿体矿石特征基础上探讨了矿床成因。分析发现:二道岭金矿床的矿体均赋于韧性剪切糜棱岩带之中,矿体严格受近东西向韧性剪切构造控制,糜棱岩化含金石英脉蚀变发育,围岩为印支期黑云母二长花岗岩和品位不达标的蚀变石英闪长岩质糜棱岩。矿床成因类型应属次火山热液与韧性剪切糜棱岩叠加型金矿床。The regional metallogenic geological background and geological characteristics of the erdaoling gold deposit in Liaoning province were summarized,and the genesis based on the characteristics of ore bodies and ores were discussed.The ore bodies were all deposited in the ductile shear mylonite belts,and were strictly controlled by the ductile shear structures in the near east-west direction.Mylonitized goldbearing quartz vein alteration was well developed,and the surrounding rocks were biotite monzonite and altered quartz diorite mylonite of indochinese period.The genetic type of the deposit should be subvolcanic hydrothermal and ductile shear mylonite superposition gold deposit.

关 键 词：二道岭金矿床 韧性剪切带 次火山热液 糜棱岩 矿床成因 

分 类 号：P618.51[天文地球—矿床学]