Source-to-sink system studies in oil fields are especially important for optimizing the favourable oil-gas areas; however, this basin-mountain interaction process is particularly complicated in intermontane basins. In this study, detrital zircon U–Pb dating of 8 new and 3 published samples from throughout the Jurassic in the central Turpan Basin (TB) are combined with collected heavy mineral data to investigate the evolution of the source-to-sink system and reconstruct the filling process of this intermontane basin from the Lower to Upper Jurassic. Based on the detrital zircon ages and heavy mineral assemblage, the filling rocks mainly weathered from Mesozoic, Palaeozoic and Precambrian volcanic and metamorphic rocks in the Tian Shan (TS) area, and the source-to-sink systems in the basin show a clear alteration corresponding to the uplift of the surrounding mountains during the Jurassic. In the Lower Jurassic, the uplifted central and northern TS was the main provenance and shed the most source rocks northward, and the gentle positive relief of the Bogda Mountains (BM), the northern boundary of the TB, was a secondary provenance and provided limited material to the northern area. In the early Middle Jurassic, these provenances did not alter much, but in the later Middle Jurassic, uplift of the western BM began and provided some extreme new source rocks with detrital zircon ages of approximately 159–172 Ma. In the Upper Jurassic, the considerably uplifted BM became the main provenance, while the still gently uplifted central and northern TS became the secondary provenance.

中文翻译：

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吐鲁番盆地侏罗纪源-汇系统：来自碎屑锆石年代学的约束

油田源汇系统研究对于优化油气有利区尤为重要；然而，这种盆山相互作用过程在山间盆地中尤为复杂。在这项研究中，将吐鲁番盆地中部（TB）整个侏罗纪的 8 个新样品和 3 个已发表样品的碎屑锆石 U-Pb 定年与收集的重矿物数据相结合，以研究源-汇系统的演化并重建这个山间盆地从下侏罗统到上侏罗统的充填过程。根据碎屑锆石年龄和重矿物组合，充填岩主要来自天山（TS）地区的中生界、古生界和前寒武纪火山岩和变质岩，盆地源汇系统与侏罗纪周边山脉的抬升相对应，呈现出明显的变化。下侏罗统以抬升的中部和北部TS为主要物源，向北脱落烃源岩最多，TB北部边界Bogda山脉（BM）的缓正地势为次要物源，提供了有限的烃源岩。向北部地区提供材料。在中侏罗世早期，这些物源变化不大，但在中侏罗世晚期，BM西部开始抬升，提供了一些极端的新烃源岩，碎屑锆石年龄约为159~172 Ma。在上侏罗统，显着隆起的BM成为主要物源，而仍轻微隆起的中部和北部TS成为次要物源。