本文针对盐湖盆地地层结构特点 ,采用一种沉积物厚度去压实 (古厚度计算 )的改进算法 ,考虑了由剥蚀作用、盐运动及互层引起的厚度和埋深变化。根据岩层现今厚度、岩性、剥蚀厚度、异常压实及盐层厚度的变化 ,计算各地层时代末期的古厚度。这将为准确进行盐湖盆地埋藏史分析 ,构造演化分析提供重要途径。 In this paper, aiming at the characteristics of stratigraphic structure in the Salt Lake Basin, an improved algorithm for de-compaction of sediment thickness (paleo-thickness calculation) is adopted, taking into account the variation of thickness and depth due to denudation, salt movement and interbed. According to the current thickness, lithology, denuded thickness, abnormal compaction and salt thickness change of the strata, the paleo-thickness at the end of each stratigraphic period is calculated. This will provide an accurate way for the analysis of burial history and tectonic evolution in the Salt Lake Basin.