辽宁北部槽区下二台群及其区域对比

XIA'ERTAI GROUP IN THE GEOSYNCLINE OF N.LIAONING AND REGIONAL CORRELATION

下二台群与吉林下古生代槽区相连,自上而下可分为王相屯组、黄顶子组和盘岭组。下二台群时代应为寒武—志留纪。下二台群的王相屯组、黄顶子组、盘岭组应分别与吉林下古生界(呼兰群)的桃山组、石缝组、黄莺屯组对比。下二台群具有复杂的褶皱形式,致使同一岩层重复出现。下二台群是寻找与火山活动有关的金、银、铜和多金属矿的有利层位。

The Xia'ertai Group connects with the lower Palaeozoic geosyncline of Jilin.Up to down it is divided into Wangxiangtun Formation,Huangdingzi Formation,Panling Formation.The age of Xia'ertai Group is Cambrian—Silurian period.Wangxiangtun Formation,Huangdingzi Formation,Panling Formation of Xia'ertai Group should be respectively contrasted with Taoshan Formation,Shifeng Formaticn and Huangyingtun Formation of the lower Palaeozoic(Hulan Group)in Jilin.Xia'ertai Group have com- plicated folds which make the same formation repeatedly appear.Xia'ertai Group is the position to look for gold,silver,copper and multimetal deposits related with vol- canic activity.