鄂尔多斯南部地区早古生代主动大陆边缘演化特征

Characteristics and evolution of active continental margin during early palaeozoic era in southern ordos

中—晚奥陶世期间 ,鄂尔多斯南部地区为古秦岭洋北侧具沟、弧、盆体系的主动大陆边缘。在此背景下 ,有序地发育了可分别用镶边碳酸盐陆棚模式及重力流模式概括的弧后盆地与残留海盆地沉积类型 ;构造轮廓为向洋呈阶状断落和块状错移结构特征的基本格局。晚奥陶世末 ,华北板块与扬子板块的陆

The basin types, sedimentary features ,tectonic frameworks and evolution of active continental margin during the Middle-Late Ordovician in the south area of Ordos are brought to light and discussed.