microfacies

The point bar microfacies is largest in sandbody size and best in petrophysics, and the natural levee microfacies comes second.

边滩微相砂体规模大、储好,其次为天然堤;

Northeast is low-angle slope, develop constructive potamic-lake delta, The delta from headstream to lake, extend very long, sediment complex and Microfacies multiplicity.

三角洲从到湖泊区,延伸距离远,积复杂、微相多样。