Texture of sedimentary rock: clastic texture and nonclastic texture.
沉积岩的结构:碎屑结构和非碎屑结构。
The intermediate-acid pyro-clastic rock is dominant with a few of intermediate lava and common sedimentary pyroclastic rocks formed in the volcanic intermittent activities in the Qidaogou area.
秋皮沟一带分布一套以中酸性火山碎屑岩为主,夹少量中性熔岩及火山间歇期正常沉积的秋皮沟火山碎屑岩;
Chengdao oil field has a crystalline basement of Achaean granite gneiss and a sedimentary basement of Paleozonic carbonate rock or Mesozonic clastic rock.
埕岛油田的结晶基底为太古界花岗片麻岩,沉积基底为古生界碳酸盐岩和中生界碎屑岩。
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