摘要
通过笔者１９８５年以来对该矿床的研究表明，该矿床的成矿过程受“双模式成因机制”控制，即由于韧性剪切糜棱岩化作用促使二叠系上统林西组中的成矿元素发生活化、迁移、富集，形成初始矿源层，与此同时或稍后，燕山期（Ｋ—Ａｒ法，１５５．３～１７７．２Ｍａ）火山—次火山热液活动从深部所携成矿物质迭加在初始矿源层之上，形成矿床。
Through the study for this deposit since 1985,it shows that the metallogenetic process was controlled by double model origin mechanism,namely metallogenic elements which exhibited activation,migration and richment due to the influence of the ductile shear mylenization.At the same time or later,from a volcanic hydrothermal action,some ore-forming materials from deep part superimposed on original source bed resulted in formation of the deposit in Yanshanian 155.3-177.ZMa,by K-Ar method.
出处
《吉林地质》
1996年第2期45-51,共7页
Jilin Geology
关键词
锡矿床
铜矿床
多金属矿床
成因
Ore deposit origin Double model origin mechanism Source bed Vol-cano-subvolcanic hydrothermal solution The Dajing tin-copper polymetallic Ore deposit
