鄂尔多斯盆地马家沟组准层状岩溶角砾岩特征及其成因*
张欣玥1,2, 李凌1,2, 张道锋3, 易刚4, 吴东旭5, 钟寿康1,2, 杨梦颖1,2, 熊鹰1,2, 肖笛1,2, 谭秀成1,2

Characteristics and genesis of quasi-stratified karst breccia of the Majiagou Formation in Ordos Basin
ZHANG Xinyue1,2, LI Ling1,2, ZHANG Daofeng3, YI Gang4, WU Dongxu5, ZHONG Shoukang1,2, YANG Mengying1,2, XIONG Ying1,2, XIAO Di1,2, TAN Xiucheng1,2
苏里格气田东北部马家沟组上组合加里东期风化壳岩溶角砾岩特征 109 a—风化壳岩溶角砾岩,角砾间充填陆源砂、铝土质泥岩,3544.15 m,马五2亚段,T13井; b—杂色风化壳角砾岩,角砾呈土黄色,3482.17 m,马五1亚段,T39井; c—暗紫色风化壳岩溶角砾岩,3221.30 m,马五1亚段,Sh243井; d—杂色风化壳角砾岩,角砾间为铝土质泥充填,3220.89 m,马五1亚段,Sh243井; e—加里东期溶沟切割B1型岩溶角砾岩,3443.55 m,马五4亚段,S5井; f—风化壳岩溶角砾,填隙物为陆源砂,3544.15 m,马五2亚段,正交光,T13井; g—e图局部素描; h—f图局部放大照片,左侧单偏光,右侧正交光,T13井