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中文摘要：
鄂尔多斯盆地的发育时限为中晚三叠世-早白垩世，晚白垩世以来为盆地的后期改造时期；盆地主体具克拉通内盆地特征；现今盆地为经过多期不同形式改造的残留盆地。该盆地叠加在早、晚古生代大型盆地之上，又属多重叠合型盆地。鄂尔多斯盆地集油气、煤和铀于一盆，多种能源矿产丰富。根据盆地及周缘地区主要地质构造特征和地质事件，结合对盆地各区裂变径迹年龄的综合研究认为，在盆地发育时期（T2-K1）至少发生了4期明显的构造变动，将盆地的沉积-演化过程划分为4个阶段：中晚三叠世和早中侏罗世富县-延安期为盆地发育的两个鼎盛阶段，广泛接受沉积，湖盆宽阔，沉积范围为今残留盆地面积的2倍多；形成重要的含油和成煤岩系。这两个阶段被期间发生的区域抬升变动（J1）所分隔。抬升导致沉积间断，延长组顶部遭受强烈而不均匀的侵蚀下切，形成起伏较大的侵蚀地貌。延安期末盆地抬升变动不强烈，沉积间断和剥蚀延续时间短。随后又复沉降，进入盆地发育的第三阶段中侏罗世直罗-安定期：沉积范围仍较广阔，但湖区面积明显减小。晚侏罗世构造变动强烈，在盆地西缘形成逆冲一推覆构造带，在其东侧前渊局限堆积厚度不等的砾岩，盆地中东部地区遭受剥蚀改造；今黄河以西地区初显东隆西坳格局。在早白垩世阶段，沉积分布仍较广阔，不整合超覆在前期西缘冲断带和南、北边部隆起之上。在盆地演化的前三个阶段，沉积中心均分布在延安附近及其以东；而堆积中心则位于邻近物源的盆地西部，且不同阶段位置有别；直到早白垩世，盆地的沉积中心和堆积中心的分布位置才大体一致，主要位于盆地西部的中南段。早白垩世末，鄂尔多斯盆地整体抬升，大型盆地消亡；盆地开始进入后期改造时期。在晚白垩世
英文摘要：
Ordos basin has developed during middle--late Triassic and early Cretaceous and has been reformed since late Cretaceous. It mainly possesses the characters of intra-craton and is a residual basin with multi-stage and different reformation. Ordos basin also belongs to multi-superimposed basin which overlapped on the early and late Paleozoic basins. Therefore, Multi-energy mineral deposits are abundant and petroleum, coal and uranium are beared in the same basin. According to the the main geological structure features and geological events in Ordos baisn and peripheral areas, together with the comprehensional research of the fission track ages in various district of the basin, the paper concludes that there exists four evident stages of structural fluctuation at least during basin development and also four stages of evolution and sedimentation in the basin, middle--late Triassic and early--middle Jurassic Fuxian and Yan＇an stage is the two most prosperous stages during which the lake is broad and basin deposits extensively with an area over two times of that in present, the main oil and coal bearing strata develop. The two stages are divided by the regional early Jurassic uplift fluctuation, which causes interruption in deposition and development of the roughness of relief on the upper part of the Yanehang formation by reason of forceful and uneven cutting erosion. The uplift fluctuation is weak and the depositional interruption and erosion continuous time is short in the late Yan＇an stage. Then basin subsides and enters the third evolution stage of middle Jurassic Zhiluo--Anding stage in which sedimentary range is still broad and the lake area is minish in the basin. There happens strongly structural movement and develops the thrust-nappe belt in western margin of the basin in late Jurassic during which the different depth of conglomerate deposit in the foredeep part in the east side of the western margin, erosion reform occurs in the middle and east of the basin. The structural movement causes the form of s
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