; Jin WeiJun] Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
; [Pan GuoQiang] Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China
; [Li ChengDong] Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China
; [Jia XiuQin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
How to study granite in the 21(st) century is still a problem. The authors hold that the current theory for granite study and the popular parlance and terms should be checked up and reflected. Furthermore, we should absorb the essence, reject the dross and abandon those which are unscientific, unrealistic and unreasonable. For example, we should discard the theory of fractional crystallization, lessen the significance of mixing of granite, restrict the application of the theory of tectonic environment and cancel the terms such as mantle-derived, crust-derived and mixed crust-mantle-derived in the study of granite. The authors propose two main questions to be solved in the future research on granite: (1) what is granite.? (2) why is it like this? This paper puts forward the following five aspects as the key points for the future work: (1) to carry out case study for typical granite; (2) to combine the research of granite with that for the ancient crust; (3) to combine the research of physical character of granite with geochemistry of granite; (4) to cam, out comprehensive research on experimental work; and (5) to establish new theory of "Continental Tectonics". Due to the severe problems existing in current granite research, current theory of granite nearly fall apart, the mansion of granite braced by four footstones is about to collapse. Therefore, the authors suggest a debate should be held for granite study, aiming to clear up thoughts, to recognize problems, to define the direction and to find a way out. The authors advocate to advance the study of granite by strengthening learning, quickening the pace of introducing talents, overcoming the emotion of impatience and boasting and exaggeration in the style of learning and abandoning herd and slavish thought. We should further stop evaluating individuals by SCI and improve related policy.