气候变化领域集成服务门户(CCPortal): Provenance variations of the Tengger Desert since 2.35 Ma and its linkage with the Northern Tibetan Plateau: Evidence from U-Pb age spectra of detrital zircons

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DOI	10.1016/j.quascirev.2019.105916
	Provenance variations of the Tengger Desert since 2.35 Ma and its linkage with the Northern Tibetan Plateau: Evidence from U-Pb age spectra of detrital zircons
	Fan Y.; Li Z.; Wang F.; Ma J.; Mou X.; Li X.; Zhang Q.; Zhao H.; Chen F.
发表日期	2019
ISSN	0277-3791
卷号	223
英文摘要	Knowledge of variations of the sedimentary sources of the proximal deserts of the Chinese Loess Plateau (CLP) is important for understanding eolian processes linking environmental changes within provenance areas and the areas of deposition downwind. In addition, it may shed light on the history of the uplift of the Tibetan Plateau. However, the long-term variations in provenance of the proximal deserts of the CLP are still unknown. The Tengger Desert (TD) is one of the proximal deserts upwind of the CLP. It is located in a depression (also a plateau) on the northeastern margin of the Northern Tibetan Plateau (NTP) and to the south of the Gobi Altay Mountains (GAMs). Here, we present U-Pb age spectra of detrital zircon grains from 11 sand layers from core BJ14 which was drilled in the northwestern part of the TD. The ages of the sand layers range from 2.35 to 0.11 Ma. The results indicate that: (1) The GAMs and NTP were two competing provenance areas of sands in the TD. (2) The dominant provenance area of clastic materials in the TD area was GAMs during 2.35–1.80 and 1.2–0.6 Ma, and the NTP at ∼1.56 Ma and during 0.36–0.11 Ma. The shift in the dominant provenance area in the TD from the GAMs to the NTP was controlled by the phased uplift of the Tibetan Plateau against the background of global cooling. (3) The relative increase of the sedimentary contribution from the NTP was generally synchronous with increases in the accumulation rate and the enlargement of eolian sand/dust deposits downwind, but the increase began at a late stage in the phased uplift of the Tibetan Plateau. These findings indicate that the phased rapid uplift of the NTP was a trigger which dominated the variations in the provenance of the proximal deserts of the CLP and beyond. © 2019 Elsevier Ltd
英文关键词	Chinese Loess Plateau; North Tibetan Plateau; Provenance; Tengger Desert; U-Pb age
语种	英语
scopus关键词	Arid regions; Binary alloys; Lead alloys; Sand; Sedimentology; Sediments; Silicate minerals; Zircon; Chinese Loess Plateau; Provenance; Tengger Desert; Tibetan Plateau; U-Pb ages; Landforms; age determination; detrital deposit; environmental change; eolian process; long-term change; provenance; spectral analysis; uplift; uranium-lead dating; Altai Mountains; China; Qinghai-Xizang Plateau; Tengger Desert
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151731
作者单位	Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, China; Key Laboratory of Western China's Environmental Systems, Ministry of Education, College of Earth and Environmental Sciences, Lanzhou University, China; North-west Institute of Eco-Environment and Resources, Chinese Academy of Science, China; Key Laboratory of Alpine Ecology and Biodiversity, Chinese Academy of Sciences, China; Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
推荐引用方式 GB/T 7714	Fan Y.,Li Z.,Wang F.,等. Provenance variations of the Tengger Desert since 2.35 Ma and its linkage with the Northern Tibetan Plateau: Evidence from U-Pb age spectra of detrital zircons[J],2019,223.
APA	Fan Y..,Li Z..,Wang F..,Ma J..,Mou X..,...&Chen F..(2019).Provenance variations of the Tengger Desert since 2.35 Ma and its linkage with the Northern Tibetan Plateau: Evidence from U-Pb age spectra of detrital zircons.Quaternary Science Reviews,223.
MLA	Fan Y.,et al."Provenance variations of the Tengger Desert since 2.35 Ma and its linkage with the Northern Tibetan Plateau: Evidence from U-Pb age spectra of detrital zircons".Quaternary Science Reviews 223(2019).