DOI: 10.1016/j.quascirev.2016.11.023
Scopus记录号: 2-s2.0-85001086193
论文题名: Paleomagnetic chronology and paleoenvironmental records from drill cores from the Hetao Basin and their implications for the formation of the Hobq Desert and the Yellow River
作者: Li B. ; Sun D. ; Xu W. ; Wang F. ; Liang B. ; Ma Z. ; Wang X. ; Li Z. ; Chen F.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 156 起始页码: 69
结束页码: 89
语种: 英语
英文关键词: Paleoenvironment
; The Hetao basin
; The Hobq (Kubuqi) desert
; The Yellow River
Scopus关键词: Core drilling
; Drills
; Landforms
; Rivers
; Sedimentology
; Stratigraphy
; Environmental history
; Environmental proxies
; Paleo-environment
; Stratigraphic framework
; Stratigraphic sequences
; The Hetao basin
; The Hobq (Kubuqi) desert
; Yellow river
; Catchments
; basin evolution
; Cenozoic
; chronology
; electron spin resonance dating
; environmental history
; facies
; fluviolacustrine deposit
; historical record
; Last Interglacial
; magnetostratigraphy
; paleoenvironment
; paleomagnetism
; Pliocene
; proxy climate record
; reconstruction
; river channel
; sediment transport
; sedimentary basin
; uplift
; China
; Hetao Basin
; Kubuqi Desert
; Nei Monggol
; Ordos Plateau
; Yellow River
英文摘要: Reconstructing the Cenozoic environmental history of Hetao Basin, in the northern part of the Ordos Plateau in North China, is important not only for revealing the evolution of the Yellow River, but also for understanding the formation of the Hobq Desert. Here we present the stratigraphic framework of drill core DR01 with length of 2503.18 m, and the results of magnetostratigraphic and ESR dating and multi-proxy analyses of drill core WEDP05 with length of 274.60 m, from the Hetao Basin. The magnetostratigraphic and ESR results indicate that core WEDP05 spans the last ∼1.68 Ma. Stratigraphic sequence of core DR01 indicates that the Hetao area was uplifted and eroded during the early Cenozoic, before subsiding to form a sedimentary basin. Subsequently, the basin was a fluvio-lacustrine environment during the Pliocene and then experienced alternating desert and fluvio-lacustrine conditions during the Quaternary. Sedimentary facies and multi environmental-proxy analyses of core WEDP05 indicate that the basin was occupied by a fluvio-lacustrine system during the following intervals: ∼1.47 – ∼1.30 Ma, ∼1.17 – ∼1.07 Ma, ∼0.68 – ∼0.60 Ma and from ∼0.47 Ma to the last interglacial; and that a desert environment developed during the lake regression phases of ∼1.30 – ∼1.17 Ma, ∼1.07 – ∼0.68 Ma and ∼0.60 – ∼0.47 Ma. The presence of aeolian sand at the base of core WEDP05 suggests that the origin of the Hobq Desert can be traced back to the early Pleistocene, and resulted from the erosion and transportation of exposed fluvio-lacustrine sediments by near-surface winds associated with the Asian winter monsoon. A large river channel in the Hetao Basin may have existed as early as the Pliocene, which was occupied by the Yellow River when its upper reaches formed by at least ∼1.6 Ma. Subsequently, at least since ∼1.2 Ma, the Yellow River formed its drainage system around the Hetao Basin and controlled the paleoenvironment evolution of the basin. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59340
Appears in Collections: 过去全球变化的重建
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作者单位: Key Laboratory of West China's Environmental System (Ministry of Education), Lanzhou University, Lanzhou, China; Inner Mongolia Second Hydrogeology Engineering Geological Prospecting Institute, Ordos, China
Recommended Citation:
Li B.,Sun D.,Xu W.,et al. Paleomagnetic chronology and paleoenvironmental records from drill cores from the Hetao Basin and their implications for the formation of the Hobq Desert and the Yellow River[J]. Quaternary Science Reviews,2017-01-01,156