砂岩中孔隙以次生粒间溶孔为主，发育程度与岩性和次生浊沸石的选择性溶蚀有关。
The secondary porosity develop in sandstone. It is controlled by the lithology and the selective dissolution of laumonite.
自生高岭石胶结可保留粒间微孔隙，对渗透性影响较小，甚至可增强渗透性。
The cementation of authigenic kaolinite may preserve the tiny intergranular pore-space, and slightly influence the porosity, and even increase the permeability.
自生高岭石胶结可保留粒间微孔隙，对渗透性影响较小，甚至可增强渗透性。
The cementation of authigenic kaolinite may preserve the tiny intergranular pore-space, and slightly influence the porosity, and even increase the permeability.
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