王鸿章(1990)通过行星质量与光度关系的研究得出,地球及其它大行星核部存在核反应,正是这种核反应提供了地球的主要热能,而不是通常所指的放射性元素衰变能。前寒武纪岩石中核反应堆的发现(Yang Tianxin et al.,1996)表明U、Th可以自发产生核裂变。笔者最近的研究显示,地球的外核及其他行星核中存在大量的U和Th(鲍学昭等,1998)。由于U、Th的比重比Fe、Ni大得多,因此它们在液态外地核 According to the study of the relationship between the mass and the photometry of the planet, Wang Hongzhang (1990) concluded that there are nuclear reactions in the nuclei of the Earth and other major planets. It is this nuclear reaction that provides the main thermal energy of the earth instead of the normally-denoting radioactive element decay energy. The discovery of pre-Cambrian rock-derived nuclear reactors (Yang Tianxin et al., 1996) shows that U and Th spontaneously generate nuclear fission. Recent author’s research shows that there are a large number of U and Th in the Earth’s outer core and other planets (Bao et al., 1998). Since U and Th have a much larger specific gravity than Fe and Ni, they are in the liquid field core