鄂尔多斯盆地宁县地区三叠系延长组7段湖盆细粒重力流沉积类型、特征及模式*
吕奇奇1, 辛红刚2,3, 王林1, 罗顺社1, 淡卫东2,3, 冯胜斌2,3

Sedimentary types,characteristics and model of lacustrine fine-grained gravity flow in the Member 7 of Trassic Yanchang Formation in Ningxian area,Ordos Basin
LU Qiqi1, XIN Honggang2,3, WANG Lin1, LUO Shunshe1, DAN Weidong2,3, FENG Shengbin2,3
鄂尔多斯盆地宁县地区长7段混合事件层、浊流沉积、深湖相泥质沉积特征 a—混合事件层,下部发育砂质碎屑流沉积,上部发育薄层浊流沉积,见鲍马序列ACE段及火焰状构造,N228井,长72,1710.34m;b—混合事件层,下部砂质碎屑流沉积,可见泥岩撕裂屑,上部浊流沉积,可见微弱平行层理,Zh40井,长72,1451.98m;c—浊流沉积,底部可见火焰状构造,发育鲍马序列AE组合,N228井,长72,1736.00m;d—浊流沉积,发育鲍马序列DE组合,N228井,长73,1745.63m;e—沟模构造,N228井,长72,1718.40m;f—槽模构造,N228井,长72,1716.77m;g—重荷模构造,N228井,长71,1683.40m;h—褐黄色凝灰岩,可见方解石条带,N228井,长73,1755.90m;i—块状泥岩,N228井,长73,1745.00m;j—灰黑色页岩,N228井,长73,1757.50m