Age and provenance of loess in West Qinling  

作　　者：Rob Van der Voo 

机构地区：[1]Department of Geological Sciences , the University of Michigan, Ann Arbor, MI 48109- 1063 , USA

出　　处：《Chinese Science Bulletin》1999年第23期2188-2192,共5页

摘　　要：Magnetic polarity stratigraphy of loess in West Qinling (Mts.) demonstrates that loess began to deposit in West Qinling at ca. 800 kaBP. Its material may come from the nearby Tibetan Plateau to the west. This suggests that a sharp change in air circulation and surface environment on and around the Tibetan Plateau occurred at that time.Magnetic polarity stratigraphy of loess in West Qinling (Mts.) demonstrates that loess began to deposit in West Qinling at ca. 800 kaBP. Its material may come from the nearby Tibetan Plateau to the west. This suggests that a sharp change in air circulation and surface environment on and around the Tibetan Plateau occurred at that time.

关 键 词：QINLING LOESS ORIGIN age SOURCE area. 

分 类 号：P597[天文地球—地球化学]