Abstract：The Ordos Basin is located in the western part of the North China Platform. Based on the detailed analyses of different elements，such as the contact characteristics of the strata，characteristics of structural boundaries，stratigraphic development characteristics and continuity，relationships between depositional basin and its neighboring tectonic units，properties of the provenance area，sedimentary systems and facies distribution，palaeocurrent patterns，etc.，the original features from the Jurassic to the Cretaceous in the Ordos Basin are reconstructed.The evolution of the basin can be divided into four stages. During the first stage(from the Early Jurassic to the early Middle Jurassic)and the second stage(the Bathonian-Callovian of the Middle Jurassic)，the basin extent and the sedimentary system distribution were similar. The most important difference between the two stages is that coal accumulation occurred in the first stage while it did not exist in the latter, which is attributed to the palaeoclimate change. The basin shrank and was present only to the east of the Zhuozishan-Shigouyi-Liupanshan Mountains during the third stage(Late Jurassic)of the basin evolution. In the forth stage of the basin evolution(Early Cretaceous)，the basin expanded slightly，and its eastern boundary maybe extend to the west of the present Lüliangshan Mountain.
Zhang Hong,Jin Xianglan,Li Guihong et al. Original features and palaeogeographic evolution during the Jurassic-Cretaceous in Ordos Basin[J]. JOPC, 2008, 10(1): 1-11.
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