鄂尔多斯地区奥陶纪构造古地理演化与沉积充填特征*
邵东波1, 包洪平1,2, 魏柳斌1,2, 蔡郑红1,2, 武春英1,2, 周黎霞1,2, 曹岩刚1

Tectonic palaeogeography evolution and sedimentary filling characteristics of the Ordovician in the Ordos area
Shao Dong-Bo1, Bao Hong-Ping1,2, Wei Liu-Bin1,2, Cai Zheng-Hong1,2, Wu Chun-Ying1,2, Zhou Li-Xia1,2, Cao Yan-Gang1
鄂尔多斯地区下奥陶统冶里组—亮甲山组、马家沟组岩性及结构特征
A—陕106井,3229.6 0 m,马家沟组马五段,泥—粉晶白云岩,具球状膏质结核溶孔,单偏光;B—洛1井,289 0 m,马家沟组马四段,鲕粒云岩,粉晶结构,具残余粒间孔,单偏光;C—镇钾1井,3041.7 7 m,马家沟组马三段,纹层状细粉晶云岩,具硬石膏斑块,正交偏光;D—镇钾1井,2747.6 6 m,马家沟组马五段,巨晶石盐岩,岩心照片;E—偏关,冶里组,含球粒泥晶藻灰岩,沿压溶缝合线发育斑状云化,单偏光;F—河津,亮甲山组,细晶云岩,具自生硅质条带,正交偏光