埕海油田二区构造复杂，断层发育，其东营组以上地层属于正常压力系统，而沙河街组压力系数大于1。
The formation above Dongying group belongs to nor- mal pressure system while the pressure coefficient of Shahejie group is more than 1.
黔西北地区是一个裂谷盆地构造区，盆地内发育铅锌矿床，矿化受断裂和地层的联合控制。
The northwestern Guizhou Province is located in a rift basin with some lead-zinc deposits controlled by the faults and strata.
虽然区域构造与火山岩的复合发育区的基本轮廓可被识别，但陡倾角地层的反射成像不清晰，火山岩地层边界模糊。
Though it is roughly recognizable for the outlines of regional structure and volcanic rocks, the images of steep dip strata and boundary of volcanic rock are smeared.
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