1、

Base on AVO principle, the seismic reflection amplitude varying with offset and AVO abnormal attribute of gas-bearing sandstone are analyzed.

基于AVO原理,研究含气砂岩的地震反射振幅随炮检距的变化关系及AVO异常属性特征。

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the characters of volcanic vent facies and invading facies are steep mound shape with middle-high amplitude, low frequency, disorder reflection, only occurred near the crater, which are 2 km wide and 100~ 200 m thick.

而火山通道相和侵出相呈(陡)丘状、中强振幅、低频、杂乱反射,仅分布在火山口附近,横向宽多小于2km,纵向厚约100~200m。

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The reflection and refraction of a large amplitude plane sound wave(ⅱ) two dimensional case

大振幅平面声波的反射和折射(Ⅱ)&二维情况

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In the collinear geometry, there are always some non-conjugate component in the reflected wave, and the functional relation between reflection coefficient of amplitude and the thickness of sample can have the form of tangent function, hyperbolic tangent function and linear function;

在共线装置中,在反射波中总含有一定的非共扼的成分,振幅反射系数与样品厚度的关系可能是正切、双曲正切或线性函数关系;

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