This paper analysis feature, property, cause of formation and distribute of failure and local structure and expound basinal evolution in Xihu Trough.

本文通过对该区区域地震资料的研究，分析断裂和局部构造的特征、性质、成因机制和分布范围，阐述西湖凹陷的演化历史。

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For the geological property of Xihu Trough Area in the East China Sea, density and sound wave in the logging data is used to set up the wave impedance curve.

根据东海西湖凹陷地质特点，利用测井信息中的密度和声波建立波阻抗曲线。

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By the method of using logging data to evaluate strata automatically synthetically the strata of the three Wells of Canxue Structure of Sudi Structural Belt in Xihu Trough.

用测井自动评价地层方法对西湖凹陷苏堤构造带的残雪构造的三口井进行了综合评价。

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