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.

本多边形集合描绘了三维勘探的轮廓。此类轮廓仅用于示意勘探范围，但其定义并未统一。这些多边形源自勘探报告，但可能用于表征地表覆盖范围、全褶皱覆盖范围，乃至最终的网格定义。除用于示意勘探范围外，使用该多边形集合时需格外审慎。