摘要
本文在搜集整理矿田主要同位素年龄测定资料的基础上 ,结合矿田基础地质研究 ,初步理顺了矿田主要构造热事件 ;确定了金矿化主期为 1 4 0～ 1 35Ma,即晚侏罗纪末期 :铜钼矿化时间为 1 2 3～ 1 2 1 Ma,即早白垩纪以及随后的第二期金矿化时间 ( >72 .2 Ma) .从而揭示了矿田金矿的时空分布规律 。
Based on the data analyzing the ore area majorly by isotropic method and the basic investigation on deposit,the events of main stractural heat in deposit are preliminarily made clear,the major period of gold mineralization is 141～135 Ma,that is,the end of late Jurassic period;the period ofocopper molybdenum mineralzation is 123～121 Ma,that is,the early Cretaceous period and the second phase gold deposit C>722 Ma,which uncover the space distribution regularity and provide a reliable geological remark and a operation basis for prospecting the minerogenetic prognosis of the deposit.
出处
《黄金学报》
2000年第3期180-185,共6页
Gold Journal
关键词
成矿时代
内蒙古辽宁
金矿田
铜矿田
gold copper deposit,mineralzation times,Inner Mongolia,Liaoning.
