准噶尔盆地南缘古近系紫泥泉子组沉积体系分析

通过对露头及岩心的观察和研究，认为准噶尔盆地南缘古近系紫泥泉子组发育的沉积相主要有辫状河三角洲相和滨浅湖相。砂体成因类型多样，主要有：辫状河三角洲平原分支河道砂体、三角洲前缘水下分流河道砂体、三角洲前缘河口砂坝砂体。有东\,南\,西\,北4大沉积体系，其中北部和南部沉积体系较为发育。纵向上紫一段砂体最为发育。

Sedimentary Systems of Paleogene Ziniquanzi Formation,South Edge of Junggar Basin

Based on the observation and investigation on the outcrops and cores,we identify braided delta and shore-shallow lake facies depositions in the Paleogene Ziniquanzi Formation of south edge of Junggar basin.The genetic types of sand bodies are various,including branch channel of braided delta plain,underwater branch channel of delta front,and channel mouth bar of delta front.In the four sedimentary systems of Eastern,Southern,Western and Northern,the Northern and Southern sedimentary systems are developed.Lo...