DOI: 10.1016/j.quascirev.2016.08.036
Scopus记录号: 2-s2.0-84984941795
论文题名: Drainage evolution of the Heihe River in western Hexi Corridor, China, derived from sedimentary and magnetostratigraphic results
作者: Pan B. ; Chen D. ; Hu X. ; Cao X. ; Chen J. ; Mao J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 150 起始页码: 250
结束页码: 263
语种: 英语
英文关键词: Badain Jaran Desert
; Drainage evolution
; Drill cores
; Heihe River
; Magnetostratigraphy
Scopus关键词: Arid regions
; Catchments
; Landforms
; River diversion
; Sedimentology
; Badain Jaran Desert
; Drill core
; Environmental change
; Heihe river
; Magnetostratigraphy
; Ne tibetan plateaux
; Sedimentary environment
; Sedimentary sequence
; Rivers
; acid mine drainage
; basin evolution
; basin fill
; core analysis
; deltaic sedimentation
; drainage
; drilling
; facies analysis
; floodplain
; fluvial deposit
; fluvial process
; magnetostratigraphy
; river system
; sedimentary basin
; uplift
; Badanjilin Desert
; China
; China
; Gansu
; Hei River
; Hexi Corridor
英文摘要: The uplifting of the Tibetan Plateau has significantly changed the environment in surrounding areas by delivering abundant water and sediment. The Heihe River draining the Qilian Shan in the NE Tibetan Plateau acts as a dominant sediment routing system from the uplifted NE Tibetan Plateau to the Hexi Corridor as well as the Badain Jaran Desert. Reconstructing the evolution of the Heihe River could provide evidence for the birth of the Badain Jaran Desert and enhance the understanding of sedimentary basin fill and the relationship between tectonism, drainage evolution and environmental changes. With this aim, two parallel cores (DWJ and XKJD with depths of 140 and 68.2 m, respectively) were drilled in the floodplain of the Heihe River. The facies analysis of the sedimentary sequences from the drilling cores showed that the sedimentary environment changed from the lake system to a delta system and finally to a fluvial system at the depths of ∼133.3 and ∼68 m, respectively. The magnetostratigraphic results revealed ages of approximately 1.75 and 1.12 Ma for the DWJ and XKJD cores, respectively, and an age of approximately 1.1 Ma for the transition from delta to fluvial environment in both the cores. The change of the sedimentary environment at approximately 1.1 Ma was caused by the formation of the integrated Heihe River. The integrated Heihe River may have developed via mechanisms such as river capture and river diversion due to the uplifting of the North Qilian Shan and the Longshou Shan. The present study suggested that the formation of large inland rivers, such as the Heihe River and the Shiyang River in NW China, played an important role in the evolution of the deserts and the Loess Plateau. © 2016 Elsevier Ltd 资助项目: This study is supported by the National Science Foundation of China grants (91125008) and the Fundamental Research Funds for the Central Universities (lzujbky-2014-255).
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59433
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou, China
Recommended Citation:
Pan B.,Chen D.,Hu X.,et al. Drainage evolution of the Heihe River in western Hexi Corridor, China, derived from sedimentary and magnetostratigraphic results[J]. Quaternary Science Reviews,2016-01-01,150