中国油田河流相与三角洲相储层的地质储量占碎屑岩相总储量的近80%，是主要的沉积相类型。

In oil field of China, fluvial and delta facies reservoir are main depositional facies type, and their geological reserve accounting for nearly 80% of total reserve of clastic rock facies.

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本文重点研究了雪山组的地层特征、古水流特征以及砂岩碎屑组分特征，在此基础上简单分析了其沉积相特征。

This paper aims to analyze the stratigraphic and petrological characteristics, the palaeocurrent, and the clastic compositions of Xueshan Formation.

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广西泥盆纪的沉积相可划分为滨岸碎屑岩相、碳酸盐台地相和陆间海槽相等三个相区。

Study on the Devonian sedimentary facies in Guangxi reveals that it may be plotted to three facies areas: shoreface clastic area, carbonate platform area and inter-land sea trough.

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