2023
DOI: 10.1017/s0016756822001212
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Establishing the occurrence of late Neoarchaean – earliest Palaeoproterozoic magmatism in the Daqingshan area, northwestern North China Craton: SIMS U–Pb zircon dating, Lu–Hf and Sm–Nd isotopes and whole-rock geochemistry

Abstract: Daqingshan is located in the northwestern North China Craton where late Neoarchaean supracrustal rocks occur widely, but where magmatic zircon ages have rarely been reported for plutonic rocks. In this study, we report SIMS U–Pb zircon ages and Hf isotope, whole-rock element and Nd isotope compositions for 12 magmatic samples, including TTG, quartz monzonitic and monzogranitic gneisses, and meta-gabbroic and dioritic rocks. They have magmatic zircon ages of 2530–2469 Ma; some samples have ages of <2.48 Ga l… Show more

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