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.

本数据集包含的多边形要素描绘了三维勘探的轮廓范围。此类轮廓虽直观展示了勘探的大致边界，但并未形成统一的定义规范。该类多边形均提取自勘探报告，但其所表征的对象可能为地表覆盖范围、全褶皱覆盖范围，甚至是最终的网格布设方案。除将此类多边形用于标识勘探范围边界外，在其他场景中使用该类多边形时均需谨慎操作。