Granite–greenstone successions and associated tonalite–trondhjemite–granodiorite (TTG) suites constitute dominant components of Precambrian cratons. Here, we present petrology, geochemistry, zircon U–Pb geochronology, and Lu–Hf isotopes on monzonite, granodiorite, granite, and amphibolite from the Dengfeng Complex in the southern part of the North China Craton (NCC). Zircon U–Pb data yield weighted mean ²⁰⁷Pb/²⁰⁶Pb ages of 2498 ± 6 Ma for monzonite, 2481 ± 16 Ma for granodiorite, and 2475 ± 21 Ma for granite. Lu–Hf isotope systematics show ε_Hf(t) values ranging from 1.3 to 6.7 and crustal model ages (\(T_{{{\text{DM}}}}^{{\text{C}}}\)) in the range of 2584–2934 Ma for the rocks. The monzonite, granodiorite, and granite show moderate total rare-earth element (REE) contents, enrichment in light REEs (LREE) and depletion in heavy REEs (HREE), negative Nb, Ta, and Ti anomalies, high Al₂O₃, Sr/Y, and (La/Yb)_N ratios, with low Cr and Ni, indicating that the magma was possibly sourced from partial melting of the lower crust. The geochemical features of amphibolites are characterized by low SiO₂, Na₂O, K₂O, Sr/Y, (La/Yb)_N and high FeO, low total REEs values, limited LREE/HREE fractionation, and absence of obvious Ce anomaly, showing similarity to island arc magmatic rocks. Our results are consistent with the model of subduction and arc–continent collision in the Trans-North China Orogen during the Neoarchean to Paleoproterozoic.

花岗岩-绿岩的演替过程以及相关的方钠铁矿-长白铁矿-碎屑闪长岩（TTG）套件构成了前寒武纪克拉通的主要组成部分。在这里，我们介绍了华北克拉通（NCC）南部的登封复合岩上的独居石，花岗闪长岩，花岗岩和闪石上的岩石学，地球化学，锆石U-Pb年代学和Lu-Hf同位素。锆石U–Pb数据的加权平均²⁰⁷ Pb / ²⁰⁶ Pb年龄分别为：蒙脱石2498±6 Ma，花岗闪石2481±16 Ma和花岗岩2475±21 Ma。路-铪同位素系统显示ε_的Hf（吨）值范围为1.3至6.7和地壳模式年龄（\（T _ {{{\文本{DM}}}} ^ {{\文本{C}}} \））在2584–2934 Ma范围内。蒙脱石，花岗闪长岩和花岗岩显示出适中的总稀土元素（REE）含量，轻稀土（LREE）富集和重稀土（HREE）耗竭，负Nb，Ta和Ti异常，高Al ₂ O ₃，Cr和Ni含量低的Sr / Y和（La / Yb）_N比值表明，岩浆可能源于下地壳的部分熔融。闪石的地球化学特征是低SiO ₂，Na ₂ O，K ₂ O，Sr / Y，（La / Yb）_NFeO高，总REE值低，LREE / HREE分级受限，并且没有明显的Ce异常，与岛弧岩浆岩相似。我们的研究结果与新元古代至古元古代期间华北北部造山带俯冲和弧-陆碰撞的模型是一致的。