The Huashan Group preserves Neoproterozoic volcanic‐sedimentary sequences in the northern Yangtze Block and is an ideal target for determining the provenance and characteristics of Neoproterozoic sedimentary basins and the Precambrian crustal evolution of the Yangtze Block. Here, we report LA‐ICP‐MS detrital zircon U–Pb–Hf isotopes from four metamorphic clastic rock samples in the Huashan Group. Detrital zircons ages yield four major peaks at ca. 2,670, 2,040, 940, and 840 Ma and five subordinate peaks at greater than or equal to ca. 2,850, 2,490, 1,840, 1,600, and 1,240 Ma. The provenance of the Huashan Group includes Archean to mid‐Neoproterozoic magmatic rocks, and reworked sedimentary rocks from the northern Yangtze Block. The Huashan Group was deposited from ca. 830 to 800 Ma and represents sedimentation accompanying the development of a mid‐Neoproterozoic continental rift basin in Yangtze Block associated with the breakup of the Rodinia supercontinent. Hafnium isotope analyses of detrital zircon from the Huashan Group suggest that most crustal growth in the northern Yangtze Block occurred during the Late‐Mesoproterozoic and early to Middle Neoproterozoic and crustal reworking occurred from the Archean to the Neoproterozoic.

中文翻译：

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扬子北部华山群碎屑锆石：对新元古代沉积盆地的性质和前寒武纪地壳演化的启示

华山集团保留了扬子地块北部的新元古代火山-沉积序列，是确定新元古代沉积盆地的物源和特征以及扬子地块前寒武纪地壳演化的理想目标。在这里，我们报告了华山集团四个变质碎屑岩样品中的LA‐ICP‐MS碎屑锆石U–Pb–Hf同位素。碎屑锆石的年龄在大约4处产生四个主要峰。2,670、2,040、940和840 Ma，以及五个大于或等于ca的从属峰。2,850、2,490、1,840、1,600和1,240 Ma。华山群的物源包括太古宙至中新元古代岩浆岩，以及扬子北段的再造沉积岩。华山集团是从约 830至800 Ma，代表沉积物，伴随着扬子地块中新元古代陆相裂谷盆地的发展与罗丹尼亚超大陆的破裂有关。华山群碎屑锆石的is同位素分析表明，扬子地块北部的大部分地壳生长发生在中元古代晚期和新元古代早期至中初，而地壳返修则发生在太古代至新元古代。