The Dantazi Complex in the North Hebei Terrane is located in the middle segment of the northern North China Craton, and plays a crucial role for understanding the early Precambrian crustal evolution of the craton. The Dantazi Complex is composed mainly of late Neoarchean tonalites-trondhjemites-granodiorites, potassic granites, sanukitoid granodiorites-monzodiorites and quartz syenites, which were emplaced by Paleoproterozoic gabbroic stocks. SHRIMP and LA–ICP–MS zircon dating analyses have revealed that the Neoarchean diversified granitoids of the Dantazi Complex were formed in ∼2.52–2.47 Ga, and preserved ∼2.60–2.53 Ga inherited/captured zircon ages. All these rocks experienced early metamorphism and deformation at ∼2.40 Ga, later granulite facies metamorphism at ∼1.80 Ga, and alterations at ∼1.73 Ga. Whole-rock chemical characteristics and Sm–Nd–Lu–Hf isotopes indicate that (1) The ∼2.52 Ga tonalites-trondhjemites-granodiorites were derived from partial melting of juvenile mafic crust; (2) the ∼2.51 Ga sanukitoid monzodiorite-granodiorite series came from slab-mantle interaction with different melt/rock ratios; (3) The ∼2.50–2.47 Ga potassic granites were generated by intracrustal recycling of metagreywacks that sourced from the mixture between juvenile and ancient crustal materials; and (4) The ∼2.50 Ga quartz syenites were originated from fractional crystallization of mantle-derived magmas. These petrogenetic processes reveal that the subduction-related crust-mantle interaction is the key reason for the diversity of late Neoarchean granitoids in the Dantazi Complex. Regional comparison indicates that the Precambrian North Hebei Terrane show distinct structure in the chronology and lithological assemblages from other basement terranes in the trans-North China Orogen and Western Block, implying that they were formed in different crust-mantle dynamic systems. Therefore, the Precambrian North Hebei Terrane was probably an independent micro-continental block at least until the early Paleoproterozoic. In the Archean crystalline basement range of the North Hebei–West Liaoning–East Hebei, from NW to SE, the magmatic crystallization ages gradually became older, and the granitoid assemblages transformed from sodium-rich to potassium-rich, the spatio-temporal evolution of chemical composition and lithological assemblages further indicates that the North Hebei Terrane was most likely developed in an arc environment with continuous retreat subduction caused by the slab roll-back.

冀北地体丹塔子杂岩位于华北克拉通北部中段，对了解克拉通早期前寒武纪地壳演化具有重要作用。丹坦子杂岩主要由新太古代晚期云闪长岩-长长花岗岩-花岗闪长岩、钾质花岗岩、sanukitoid花岗闪长岩-二长闪长岩和石英正长岩组成，并被古元古代辉长岩群侵位。SHRIMP和LA-ICP-MS锆石测年分析表明，丹塔孜杂岩新太古代多样化花岗岩形成于~2.52-2.47 Ga，保留了~2.60-2.53 Ga的继承/俘获锆石年龄。所有这些岩石在~2.40 Ga 经历了早期变质和变形，在~1.80 Ga 经历了后期麻粒岩相变质，在~1.73 Ga 发生了蚀变。全岩化学特征和Sm-Nd-Lu-Hf同位素表明：（1）~2.52 Ga黑闪长岩-长长花岗岩-花岗闪长岩来源于幼年镁铁质地壳部分熔融；(2) ～2.51 Ga sanukitoid二长闪长岩-花岗闪长岩系列来自不同熔岩比的板幔相互作用；(3) ～2.50-2.47 Ga钾花岗岩是由幼年和古地壳物质混合的变灰岩在地壳内再循环生成的；(4) ～2.50 Ga石英正长岩来源于幔源岩浆的分级结晶。这些岩石成因过程揭示了与俯冲相关的壳幔相互作用是丹塔孜杂岩体晚新太古代花岗岩多样性的关键原因。区域对比表明，前寒武纪冀北地体在跨华北造山带和西部地块的年代学和岩性组合上表现出与其他基底地体不同的结构，表明它们形成于不同的壳幔动力系统中。因此，至少在早古元古代之前，前寒武纪冀北地体可能是一个独立的微陆块。冀北—辽西—冀东太古宙结晶基底范围，由NW向SE，岩浆结晶年龄逐渐变老，花岗岩组合由富钠向富钾转变，