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最近在柴达木盆地西部阿尔金断裂南侧地面剖面上侏罗统地层中首次发现了厚约９０ｍ的油砂及大量裂缝沥青脉。通过对这些油砂和沥青的分析研究发现，它们与柴达木盆地西部第三系原油差别较大，与柴达木盆地东部侏罗系原油较相似但也有一定差异。野外地质调查发现柴达木盆地西北部发育大量侏罗系烃源岩，其生物标志物等特征与这些油砂和沥青相似，综合分析认为这些油砂和沥青脉可能来源于成熟的侏罗系源岩。这些油砂的发现对柴达木盆地西北部及阿尔金断裂沿线盆地的油气勘探具有重要意义。
Recently, 90m-thick oil sands and a large number of fractured asphalt veins were first discovered in the Jurassic strata on the southern profile of the southern Altyn Tagh Fault in western Qaidam Basin. The analysis of these oil sands and bitumens shows that they are quite different from the Tertiary oil in the western Qaidam Basin and similar to the Jurassic oil in the eastern Qaidam Basin but with some differences. Field geological survey found that a large number of Jurassic source rocks are developed in the northwestern Qaidam basin and their biomarkers are similar to those of oil sands and bitumens. According to a comprehensive analysis, these sands and bitumen veins may originate from the mature Jurassic Source rock. The discovery of these oil sands is of great significance for oil and gas exploration in the basin along the northwestern Qaidam basin and the Altyn Tagh fault.