The Middle-Lower Yangtze River belt is an important polymetallic mineralized area in the eastern China，where widely cropped out Mesozoic magmatisms which can be divided into four stages. Representative rocks from the four stages magmatisms were selected for the in-situ zircon and whole-rock trace elemental analysis. Using these data， the zircon oxygen fugacity were estimated by methods of interpolation and fitting respectively. The results indicate that fitting method has more advantages over interpolation method on zircons oxygen fugacity estimation， because of more accurate and agminate in oxygen fugacity data and more obvious distribution trend. Besides， the modified M-Estimator method can effectively avoid the abnormally fractionate between the LREE and the HREE during oxygen fugacity estimation by fitting method. Finally，we consider that the least square method based on trace elements of zircon and whole-rock is more consistent with the actual situation. Estimated results show that all the four stages magmatic rocks in the Middle-Lower Yangtze River belt have relatively high oxygen fugacity. Among them， the first and fourth stage magmatic rocks have similar higher oxygen fugacity than the second and third stage rocks. Form the early to late stage magmatisms，the magmatic oxygen fugacity represents a high-low-high trend，which can well correspond to their magma origin and metallogenic attributes.
Yao Hongzhong,Yan Jun,Liu Xiaoqiang et al. Characteristics of oxygen fugacity of the Late Mesozoic magmatic rocks in the Middle-Lower Yangtze River belt and its significance[J]. Chinese Journal of Geology, 2016, 51(4): 1163-1180.