本文采用地层倾角方位频率图和蓝模式矢量方向研究古水流方向和沉积砂体延伸方向和沉积砂体的相带变化特征。

The dip frequency plot and vectograph of blue mode were used to study the paleocurrent, the extension o.

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用构造倾角分析地层产状和区域构造；利用移去构造倾角的矢量方位频率图对沉积相精细分析判断以及计算地层真实厚度。

Using the dip vector frequency plot whose structure dip is moved away, we can analyze and judge the resources orientation of the glutinite formation and sand body d.

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最后，以一次地震为例，给出了孔径随震中距、方位角、频率变化的三维图象。

At last, taking one earthquake as an example, this paper gives three dimension patterns of radius of the field with epicenter distance and azimuth as well as frequency.

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