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B3(a-d)-B4(e,f)-B5(g,h)型角砾岩特征 a—褐灰色角砾岩,3448.06 m,马五4亚段,Zh97井; b—浅灰色角砾岩,3540.84 m,马五4亚段,T58井; c—角砾岩,角砾呈次圆—次棱角状,角砾间为渗流粉砂和方解石充填,3448.06 m,马五4亚段,单偏光,Zh97井; d—岩类多样的碳酸盐岩角砾,3657.24 m,马五4亚段,单偏光,T44井; e—洞顶的碎裂角砾岩,3599.52 m,马五4亚段,T13井; f—洞壁的碎裂角砾岩,3402.85 m,马五2亚段,T42井; g—杂乱堆积的坍塌角砾岩,3405.25 m,马五4亚段,T60井; h—杂乱堆积的坍塌角砾岩,3545.73 m,马五4亚段,T39井