Qigequan Formation and Quaternary-Neogene boundary in Qaidam basin
Sun Zhencheng, Qiao Zizhen, Jing Mingchang, Zhang Haiquan, Sun Naida, Lu Yanli, Wang Hongjiang
Oil & Gas Geology . 2006, (3): 422 -432 .  DOI: 10.11743/ogg20060319