Alternating sand and loess deposition in northern China: A potential process of dust cycle

Mingrui Qiang1, Fengshan Li2, Ganggang Wang2 and Fahu Chen3, (1)South China Normal University, School of Geography, Guangzhou, China, (2)Lanzhou University, Key Laboratory of Western China’s Environmental Systems (MOE), College of Earth and Environmental Sciences, Lanzhou, China, (3)Lanzhou University, MOE Key Laboratory of Western China's Environmental Systems, College of Earth Environmental Sciences, Lanzhou, China