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Two types of Paleoproterozoic granitoids, i.e., K-feldspar/albite granites and granitic gneisses, were recognized from the Wuhe Complex of the Precambrian basement and neighboring areas in the southeastern margin of the North China Craton (NCC). They share the identical 207Pb/206Pb ages of 2096±9Ma and 2096±8Ma defined by zircon SHRIMP U–Pb dating. These granitic rocks are commonly enriched in HREE,...
Impure calcite marbles from the Precambrian metamorphic basement of the Wuhe Complex, southeastern margin of the North China Craton, provide an exceptional opportunity to understand the depositional processes during the Late Archean and the subsequent Palaeoproterozoic metamorphic evolution of one of the oldest cratons in the world. The studied marbles are characterized by the assemblage calcite+clinopyroxene+plagioclase+K-feldspar+quartz+rutile±biotite±white...
In the present study, two gneiss xenoliths from the Mesozoic Jiagou intrusion at the southeastern margin of the North China Craton (NCC) are examined for in situ zircon SHRIMP U–Pb dating in combination with zircon trace element and Hf isotope analyses. Cathodoluminescence (CL) images and trace element data reveal that most zircons from the dated samples display distinct core–rim structures, i.e.,...
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