1. Bureau of Geology and Mineral Resources, Shandong Province. 1991.Regional Geological Annals of Shandong Province, 26–51. Beijing, China: Geological Publishing House. in Chinese
2. Chi, J. S. and Lu, F. X. 1996.Kimberlites and Palaeozoic mantle beneath the North China platform, 292–293. Beijing, China: Science Press. in Chinese