subfacies

The upper subfacies of effusive facies and volcanic vent facies well developed in the middle area of Huoshiling Formation.

其结果表明东岭地区火石岭组在中部区域喷溢相上部亚相和火山通道相发育。

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Sequence ⅱ is characterized by a wide range of lake sedimentation with a great thickness, and the thick-bedded mudstones of deep-lake subfacies are the main source rocks and regional cap rocks in the basin.

层序Ⅱ湖泊沉积范围广，厚度大，厚层的湖相暗色泥岩是盆地主要烃源岩和区域性盖层。

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The spread of sedimentary facies was mainly in control of the evolution of the Kaijiang-Liangping Trough. The platform facies can be further classified into subfacies as oolitic dam, oolitic beach, tidal flat and lagoon from margin to interior of the platform.

沉积相带展布受开江&梁平海槽演化控制非常明显，从台地边缘向台内可细分为台缘鲕粒坝、鲕粒滩、潮坪及泻湖等四个亚相。

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Reservoir in different lithofacies are characterized with different reservoirs physical properties, the volcanic explosion subfacies are the most favorable reservoirs.

位于不同岩相带的储层其储集物性不同，火山爆发亚相是最有利的储集层段。

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The third member of Shawan Formation was braided-delta plain subfacies, which was divided into braided channel and flood plain.

沙湾组三段为辫状河三角洲平原亚相，细分为辫状河道和河道间湾。

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Holes surface pore focus on upper and middle subfacies of effusive facies which locates in the edifice slope.

气孔面孔率高的区域集中在距离火山口较近的斜坡处，亚相主要为喷溢相上部、中部亚相。

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Shallow lacustrine-delta facies can be divided into delta distributary plain subfacies and delta front subfacies. Delta distributary plain subfacies include 4 kinds of microfacies: overwater distributary channel, natural levee, crevasse spray, and flood plain mud;

浅水湖泊三角洲相可划分三角洲分流平原和三角洲前缘两种亚相，三角洲分流平原亚相包含水上分流河道、天然堤、决口扇、泛滥平原泥等4种微相；

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