摘要
The loess plateau is featured by a sharply undulated and remarkably incised surface. The sharp surface undulation means great variation of loess thickness. Since the loess layer exhibits significant density contrast with the underlying formation, a high frequency gravity anomaly with a certain magnitude will appear. The high frequency gravity anomaly can result in some difficulties for processing and interpreting the gravity data, thereby reducing the usefulness of gravity surveys in loess plateau areas. We carried out a high precision gravity survey in the SHJZ structural zone. During data processing, we applied terrain and loess corrections to effectively remove or suppress the gravity effect resulting from surface undulation and variation of loess thickness. We obtained high precision gravity data which matches well with other geophysical data. The comprehensive interpretation based on the final gravity data help to study local structure integrated with other published geophysical data.
黄土高原被展示由一严厉地波动了并且显著地切入表面。黄土厚度的锋利的表面波动工具伟人变化。因为黄土层与内在的形成展出重要密度对比，有某个大小的一个高频率严肃异例将出现。高频率严肃异例能为处理并且解释严肃数据导致一些困难，从而在黄土高原区域减少严肃调查的实用性。我们在 SHJZ 结构的地区执行了高精确严肃调查。在数据处理期间，我们使用了地面和黄土修正有效地移开或压制源于表面波动和黄土厚度的变化的严肃效果。我们获得了与另外的地球物理的数据匹配很好的高精确严肃数据。全面解释基于到与其它一起综合的学习本地人结构的最后的严肃数据帮助出版了地球物理的数据。
