鄂尔多斯盆地苏里格气田中奥陶统马家沟组五段凝块石类型与古盐度初步分析
乔亚斌1, 张林1, 王予1, 张一果1, 马君霞2, 姜红霞3

Thrombolite types and seawater palaeosalinity of the 5th Member of Middle Ordovician Majiagou Formation in Sulige Gas Field,Ordos Basin
Qiao Ya-Bin1, Zhang Lin1, Wang Yu1, Zhang Yi-Guo1, Ma Jun-Xia2, Jiang Hong-Xia3
鄂尔多斯盆地苏东49-67井和召54井中奥陶统马家沟组五段岩心及显微特征 A—苏东49-67井,3134.5 m,石膏结核泥粉晶白云岩,黄色箭头指示被方解石交代的球状的石膏结核,岩心照片;B—苏东49-67井,3133.37 m,蠕虫状凝块石泥粉晶白云岩,蓝色为铸体,红色为染色的方解石,单偏光;C—苏东49-67井,3132.0 m,具鸟眼构造的泥晶白云岩,鸟眼孔洞多数被方解石充填,方解石被染色成红色,单偏光;D—苏东49-67井,3122.14 m,石膏结核泥粉晶白云岩,球状的石膏结核中石膏大部分被溶蚀,溶蚀孔被蓝色铸体溶蚀充填,单偏光;E—召54井,3284.0 m,角砾岩,岩心照片;F—召54井,3284.4 m,角砾岩,单偏光;G—召54井,3282.3 m,角砾岩,单偏光;H—召54井,3289.0 m,网状隐藻凝块石泥晶白云岩,单偏光