陕西关中东部新生代复盖较厚,分层正演所得浅部重力异常值较大,该异常值(自震旦纪以来所有地层的)与相应的笫四系厚度的相关系数达0.9以上。理论计算表明,深部岩石对实测重力值影响很小,因此重力反演中,横向不均匀性的浅层改正是必不可少的。 The Cenozoic overburdens in the eastern Guanzhong are thicker and the shallow gravity anomalies are larger in the stratified forward. The correlation coefficient of the anomalous value (all strata since Sinian) and the corresponding Quaternary thickness is up to 0.9. Theoretical calculations show that deep rocks have little effect on measured gravimetric values, and therefore, shallow inversion of horizontal inhomogeneities in gravity inversion is indispensable.