The study shows that the early diagenetic com paction and multi-mineral cementation are major effective factors that lead to its poor petrophysical property and low porosity;
The properties of composite materials are better than pure ABS, and composite materials with multimineral are best and have fine processing properties.
复合材料性能优于纯abs，多矿物复合材料的性能最优，且复合体系的加工性能良好。
3
In the conference hall, such meeting facilities as the multi-media computer projector, whiteboard, platform, podium and sign plates are provided as well as mineral water and refreshment.