Seismic 3D Survey Areas - for Petroleum Industry Exploration

The polygons depict the outline of 3D surveys. These outlines illustrate the survey outlines but are not consistently defined. The polygons have been extracted from survey reports but may illustrate surface coverage, full fold coverage or even the final grid definitions. Care should be exercised when using these polygons for anything other than an indication of survey extent.

多边形（Polygon）描绘了三维勘探（3D survey）的轮廓。此类轮廓虽展示了勘探范围的形态，但并未形成统一的定义规范。这些多边形源自勘探报告，但其所表征的对象可能为地表覆盖范围、全褶皱覆盖范围，乃至最终的网格定义。除用于标识勘探范围外，若将此类多边形用于其他用途，则需格外审慎。