干旱区生态环境知识资源中心(Arid): The implication of the geophysical data and drilling records for the formation and paleoenvironment of the Hobq Desert, China

Arid

DOI	10.1016/j.quaint.2019.06.013
	The implication of the geophysical data and drilling records for the formation and paleoenvironment of the Hobq Desert, China
	Zhao, Xueyu 1,5; Zeng, Zhaofa 1,3; Zhang, Qunying 2; Chen, Xiong 4
通讯作者	Zeng, Zhaofa
来源期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
EISSN	1873-4553
出版年	2019
卷号	519 页码:42-49
英文摘要	The Hobq Desert (HD) locates at the northern margin of the Ordos Plateau, China and the transition zone to the Hetao Basin. It is one of the main proximal deserts of the Loess Plateau, and its formation was controlled by the evolution of the Yellow River and the Ordos Plateau. It is still worthy of discussing the regional structure to enhance the understanding of the desert formation and paleoenvironment, especially with the additional works in the eastern part. Geophysical methods including gravity, magnetic, EM (electromagnetic) are often used to analyse the regional and near-surface structure. As for drilling records, they could show the lithology sequence directly and be applied for the environmental study (e.g., OSL dating). Therefore, in this paper, we used the satellite gravity data, GPR (Ground Penetrating Radar), TEM (Transient electromagnetic method) and drilling records with borehole resistivity data to analyse the desert structure from different scales and the paleoenvironment. Trough the upward continuation and Park-Oldenburg calculation for the gravity data, the thickness of Quaternary deposits is 0.85-1.55 km. The inferred faults indicated the performance of the Hetao Basin and the Ordos Plateau's uplift in Pleistocene, which also contributed to HD's formation and existing topography. A three-part structure within 350 m was revealed in the profile at eastern HD by EM data. The upper layer within 80-90m was the aeolian dry sand, the middle one was mainly fluviolacustrine saturated sand with the occurrence of clay and grey calcareous root tubes, and the lower one might be the aeolian sand. This near-surface structure was consistent to the western part, and the forming period for the sand in the upper zone was thereby estimated no earlier than 80 Ka. Moreover, during this period, millennial-scale changes in paleo-effective moisture occurred although it was dominated by the arid climate.
英文关键词	The Hobq Desert (HD) Geophysical data Drilling records Formation Paleoenvironment
类型	Article ; Proceedings Paper
语种	英语
国家	Peoples R China ; Australia
收录类别	SCI-E
WOS记录号	WOS:000484434700006
WOS关键词	HOLOCENE ENVIRONMENTAL-CHANGES ; GROUND-PENETRATING RADAR ; YELLOW-RIVER ; ATACAMA DESERT ; GRAVITY ; PLATEAU ; AQUIFER ; SEPARATION ; EVOLUTION ; INVERSION
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218242
作者单位	1.Jilin Univ, Coll Geoexplorat Sci & Technol, Changchun 130026, Jilin, Peoples R China; 2.Chinese Acad Sci, Key Lab Electromagnet Radiat & Sensing Technol, Beijing 100000, Peoples R China; 3.Minist Land & Resources PR China, Key Lab Appl Geophys, Changchun 130026, Jilin, Peoples R China; 4.Hebei GEO Univ, Coll Prospecting Technol & Engn, Shijiazhuang 050031, Hebei, Peoples R China; 5.UNSW Sydney, Fac Sci, Sch Biol Earth & Environm Sci, Kensington, NSW 2052, Australia
推荐引用方式 GB/T 7714	Zhao, Xueyu,Zeng, Zhaofa,Zhang, Qunying,et al. The implication of the geophysical data and drilling records for the formation and paleoenvironment of the Hobq Desert, China[J],2019,519:42-49.
APA	Zhao, Xueyu,Zeng, Zhaofa,Zhang, Qunying,&Chen, Xiong.(2019).The implication of the geophysical data and drilling records for the formation and paleoenvironment of the Hobq Desert, China.QUATERNARY INTERNATIONAL,519,42-49.
MLA	Zhao, Xueyu,et al."The implication of the geophysical data and drilling records for the formation and paleoenvironment of the Hobq Desert, China".QUATERNARY INTERNATIONAL 519(2019):42-49.