Sr-Nd-Pb Isotopic Geochemistry of the Hukeng Granite Body in Jiangxi Province, South China

The Mesozoic Hukeng granite body locates in southeast limb of Wugongshan compound anticline in Jiangxi Province, South China. This study uses samples from the Hukeng granite body to determine the characteristics of Sr-Nd-Pb isotopes and source of the granite body. The rocks have 87Sr/86Sr ratios as high as 0.84112, suggesting that crustal contamination existed there. The rocks have higher ratios of 87Rb/86Sr, 87Sr/86Sr and (87Sr/86Sr)i, and lower ratios of 147Sm/144Nd, 43Nd/144Nd and lower eNd(t), indicating that the Hukeng granite body possessesEMⅡ-like characteristics. Combined with Pb isotopic values (206Pb/204Pb ratios from 18.5313 to 18.8460, 207Pb/204Pb ratios from 15.6562 to 15.6782 and 208Pb/204Pb ratios from 38.7015 to 38.7565), the Hukeng granite body originated from EMⅡ and suffered crustal contamination in certain extent.