Late Neoarchean-Paleoproterozoic marks a major period of continental growth and recycling, the culmination of which witnessed the assembly of the Columbia supercontinent and its subsequent breakup. The North China Craton (NCC) preserves important records of tectonic activities and crust building and recycling processes during this time. In this study, we carried out U-Pb geochronology and Lu-Hf isotopic analyses of detrital zircon grains from four sedimentary formations of the Changcheng Group in the Yanliao intracontinental rift in NE NCC. Our isotopic ages constrain the timing of initiation of the Yanliao rift as ca. 1680 Ma. The zircon U-Pb data show two major age populations at 2.7–2.5 Ga and 2.2–1.9 Ga, with high and positive ε_Hf(t) values of + 0.1 to + 34.6. Both the Neoarchean and Paleoproterozoic detrital zircon populations were derived from the basement rocks of the NCC. The results from our study indicate major juvenile crust accretion during Neoarchean and Paleoproterozoic associated with the craton building process of the NCC.

新古宙古古生代晚期标志着大陆增长和循环利用的重要时期，其高潮见证了哥伦比亚超大陆的组装及其随后的破裂。华北克拉通（NCC）在这段时间内保存着重要的构造活动记录，以及地壳的建造和再循环过程。在这项研究中，我们进行了东北东北部燕辽陆内裂谷长城组四个沉积岩层碎屑锆石的U-Pb年代学和Lu-Hf同位素分析。我们的同位素年龄将延辽裂谷的起始时间限制为约。1680毫安。的锆石的数据显示在2.7-2.5 Ga和2.2-1.9嘎两大年龄群体中，具有高的正ε_铪（t）值介于+ 0.1至+ 34.6之间。新元古代和古元古代碎屑锆石种群均来自NCC的基底岩石。我们的研究结果表明，新古生代和古元古代期间与NCC的克拉通构造过程有关的主要地壳增生。