摘要
利用基准面识别技术对柴达木盆地中生代地层进行了分析，划分出４ 个长期基准面旋回：ＬＳＣ１ 、ＬＳＣ２ 、ＬＳＣ３ 和ＬＳＣ４ ，并以此为作图单元进行古地理分析。
The identification techniques of sequence stratigraphic base levels proposed by T. A. Cross give us a new clue to the sequence stratigraphic division of continental basins. These methods have been applied in the present paper to the research on the Mesozoic strata in the Qaidam Basin, Qinghai. Four long-term base-level cycles are recognized in the basin: LSC1, LSC2, LSC3 and LSC4 (the 1st, 2nd, 3rd and 4th long-term base-level cycle, respectively), which were once employed as mapping units in the palaeogeographic research of the basin. It appears that these methods are well grounded, and may gave a new impetus to the palaeo- geographic research in the study area.
