苏尼特左旗查干哈达地区大民山组沉积层序特征

Laura zuniga left flag chagan hadad district civil administration mountain group sedimentary sequence features

研究区分布于二连—贺根山蛇绿混杂岩带上。本次研究通过与区域泥鳅河组对比,发现古生物化石鉴定为早-中泥盆世,并在该组中取得的流纹岩锆石U-Pb同位素年龄为360±2Ma。该组的确定对西伯利亚板块和华北板块碰撞开始的时间有促进作用。

The research cloudyrespectively erlian - hegenshan back-arc ophiolitic melange belt.This study compared with regional loach river group, found fossils identified as early - middle devonian, and in the group of the rhyolite zircon U - Pb isotopic age is 360 ＋ 2 ma.The determination of the group of the starting time of the Siberian plate and north China plates.