《Table 3 Average major compositions (wt%) in typical minerals of the collected ore and wall rock sam

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《"Petrological and Geochemical Constraints on the Protoliths of Serpentine-Magnetite Ores in the Zhaoanzhuang Iron Deposit, Southern North China Craton"》

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Whole-rock geochemical analyses were performed at the Analytical Laboratory of Beijing Research Institute of Uranium Geology（ALBRIUG）.Major elements were determined using a Phillips PW2404 X-ray fluorescence spectrometer and chemical analytical method.The analytical error is less than 5%.Conventional wet chemical analyses were used for measuring Fe O content with error of 0.5%.Trace and rare earth elements were determined by inductively coupled plasma mass spectrometer（ICP-MS）using a German Finnigan MAT Element spectrometer HR-ICP-MS.The relative error was less than 5%when the content was>10 ppm，less than10%when<10 ppm.The analytical results are listed in Table 1 and 2.