鄂尔多斯西部地区中—晚奥陶世克里摩里期—乌拉力克期岩相古地理*
马占荣1,2, 白海峰1,2, 刘宝宪1,2, 王红伟1,2, 陈调胜1,2

Lithofacies palaeogeography of the Middle-Late OrdovicianKelimoli and Wulalike Ages in western Ordos area
Ma Zhanrong1,2, Bai Haifeng1,2, Liu Baoxian1,2, Wang Hongwei1,2, Chen Tiaosheng1,2
鄂尔多斯西部地区中奥陶统克里摩里组沉积特征 A—云化灰泥石灰岩,含介形虫,单偏光,桃35井,3381.97 m;B—亮晶胶结云斑砂屑灰岩,单偏光,李4井,4033.64 m;C—细晶云岩,见颗粒残余暗影,发育晶间孔和溶孔,单偏光,鄂12井,3784.78 m;D—灰泥石灰岩,含钙球,单偏光,余探2井,4015.4 m;E—深灰色含泥质条带灰泥石灰岩,岩石表面氧化色变浅,余探2井,4014.43 m;F—富含笔石的灰黑色泥页岩夹层,鄂29井,4110.22 m;G—碎屑流钙质角砾岩,颗粒支撑,余探2井,4007.3 m;H—砂屑灰岩、生屑灰岩组成的角砾,单偏光,余探2井,4007.0 m;I—碎屑流钙质角砾岩,颗粒支撑,余探1井,4054.84 m;J—主要由生屑灰岩组成的角砾岩,单偏光,余探1井,4055.02 m;K—斜坡脚相的原地沉积泥岩,可见少量生物碎片,单偏光,余3井,4096.56 m;L—含燧石团块和条带的薄层状灰岩,宁夏同心县韦州青龙山卢草沟沟口