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
鄂尔多斯盆地召14井和陕243井中奥陶统马家沟组五段岩心及显微特征 A—召14井,3198.6 m,房室孔洞状凝块石泥粉晶白云岩,红色区域为方解石染色,单偏光;B—召14井,3196.1 m,云质灰岩,红色区域为方解石染色,单偏光;C—召14井,3187.3 m,含石膏结核的角砾白云岩,黄色箭头指示较规则的球状石膏结核,岩心照片;D—陕243井,3229.5 m,云质灰岩,单偏光;E—陕243井,3226.5 m,含石膏晶体的泥晶白云岩,石膏晶体溶蚀后多数被方解石充填溶蚀孔,方解石被染色,单偏光;F—陕243井,3225.3 m,含隐藻条带碎块的泥粉晶白云岩,单偏光;G—陕243井,3223.0 m,房室孔洞状凝块石泥粉晶白云岩,单偏光;H—陕243井,3220.0 m,云质灰岩,单偏光