鄂尔多斯盆地东缘奥陶系马家沟组四段豹斑状云质灰岩特征及成因: 以关家崖剖面为例*
许杰1,2, 肖笛1,2, 苏文杰3, 晏巍4, 钟寿康1,2, 杨鸣一5, 杨梦颖1,2, 谭秀成1,2

Characteristics and genesis of leopard-spotted dolomitic limestone in the Member 4 of Ordovician Majiagou Formation: a case study from Guanjiaya section in eastern margin of Ordos Basin
Xu Jie1,2, Xiao Di1,2, Su Wen-Jie3, Yan Wei4, Zhong Shou-Kang1,2, Yang Ming-Yi5, Yang Meng-Ying1,2, Tan Xiu-Cheng1,2
鄂尔多斯盆地东缘关家崖剖面中奥陶统马家沟组四段早成岩期岩溶作用的岩石学证据 a—土黄色泥质灰岩渐次向岩溶地貌高地上超;b—暴露面之下花斑状岩溶系统,溶沟、溶缝垂直层面发育;c—近原地角砾,序列顶部;d—图a局部放大特征,岩性突变面,上为泥质灰岩,下为云质灰岩;e—图c局部微观特征,斑块岩溶系统内充填大量岩溶角砾、渗流粉砂及不溶残余物,单偏光,X02-5;f—云质灰岩,发育示顶底构造,单偏光,X02-4