鄂尔多斯盆地南缘奥陶系顶部碳酸盐岩风化壳特征及其成因机制*
熊加贝1,2,3, 何登发2,3, 成祥2,3, 罗瑀峰1

Characteristics and genetic mechanism of weathering crust on carbonate rocks on the top of the Ordovician in southern margin of Ordos Basin
XIONG Jiabei1,2,3, HE Dengfa2,3, CHENG Xiang2,3, LUO Yufeng1
鄂尔多斯盆地南缘洛1井本溪组含铝岩系岩心显微照片 a—L1-12,2766.75 m,本溪组,黄铁矿化粉砂质泥岩,单偏光; b—L1-13,2766.85 m,本溪组,黄铁矿化粉砂质泥岩,单偏光; c—L1-14,2766.04 m,本溪组,黄铁矿化粉砂质泥岩,单偏光; d—L1-15,2767.5 m,本溪组,黄铁矿化粉砂质泥岩,正交偏光; e—L1-16,2767.7 m,本溪组,变黄铁矿化粉砂质泥岩,正交偏光; f—L1-18,2768.3 m,本溪组,变黄铁矿化粉砂质泥岩,正交偏光。Mud: 泥质物; Qtz: 石英; Py: 黄铁矿; Sand: 富砂质聚集层; A: 含铁质深色聚集层; B: 富泥质聚集层