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The Yinshan Block constitutes the northwestern segment of the North China Craton. We characterized the geochemistry, zircon U–Pb geochronology, and Hf isotopic composition of a diorite pluton in the Yinshan Block. The zircon U–Pb data yield a protolith formation age of 2535 ± 8 Ma (MSWD = 0.46), followed by recrystallization at 2465 ± 14 Ma or 2431 ± 30 Ma; the granite vein which intruded into the...
The Huoqiu banded iron formation (BIF) iron deposits in the southeastern margin of the North China Craton (NCC) is hosted by middle-grade metamorphic Huoqiu complex. LA-ICP-MS U–Pb dating on zircons separated from the wallrock of the orebody constrains the depositional age ≤2.54Ga and metamorphic age as ∼1.8Ga. The dominant composition of SiO2+Fe2O3T of the BIF ores suggests their formation mainly...
Paleozoic crust–mantle interaction and geodynamic setting of the South China Block have remained largely elusive due to the scarcity of mafic rock suites. Here we report data from a suite of mafic rocks including norite, mafic granulite, garnet-bearing amphibolite, biotite-bearing amphibolite, and amphibolite from the Chencai region in the northeastern Cathaysia Block of South China, that mostly record...
The Badu complex and associated Paleoproterozoic granitoids are among the oldest known rocks in the Cathaysia Block in South China. The Paleoproterozoic units of the Badu complex are dominantly composed of metapelitic rocks and meta-greywackes. Here we report LA-SS-ICP-MS (laser ablation-split-stream inductively coupled plasma-mass spectrometry) zircon U–Pb data from a newly discovered garnet-bearing...
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