Aim To study sedimentary environment and microfacies of lower member of Shanxi Formation in northwest part of Ordos basin.

• 目的研究鄂尔多斯盆地东北部山西组的沉积环境和沉积微相,探究沉积微相的时空分布和控制因素,为天然气勘探寻找有利储层。