ordovician weathered crust

基本解释

Late trias, the up-and-down configurations of Ordovician weathered crust peak are high on the west-north and low on the east-south, oil-gas moved to west-north.
晚三叠世，奥陶系顶面处于西北高、东南低的构造格局，最初生成的油气向盆地西北方向运移。
The long-term palaeokarstification in different stages resulted in the gas reservoir of weathered crust of Ordovician in the central part of Shaanganning Basin.
陕甘宁盆地中部奥陶系风化壳天然气储集层的形成，是不同期次古岩溶长期作用的结果。
The gas of central gas field of Shan-Gan-Ning basin is produced from paleo-weathered crust dolostone reserviors of Majiagou formation on top Ordovician.
陕甘宁盆地中部气田的天然气产于奥陶系顶部古风化亮马家沟组白云岩储层中，储集空间的形成是不同期次溶蚀作用和充填作用相互作用的结果。