The impact of energetic tropical cyclones (typhoons) on the modern sediment magnetism along the South China coast

doi:10.1016/j.csr.2021.104447

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	The impact of energetic tropical cyclones (typhoons) on the modern sediment magnetism along the South China coast
	Li, Mingkun 1,4; Chen, Wenshen 2; Ouyang, Tingping 1; He, Chenjian 1,3; Kuang, Yuxing 1; Peng, Shasha 3
刊名	CONTINENTAL SHELF RESEARCH
	2021-07-15
卷号	224 页码:12
关键词	Tropical cyclone Environmental magnetism Leizhou peninsula South China Grain size
ISSN号	0278-4343
DOI	10.1016/j.csr.2021.104447
通讯作者	Li, Mingkun(limk@m.scnu.edu.cn) ; Ouyang, Tingping(oyangtp@m.scnu.edu.cn)
英文摘要	Tropical cyclones (TCs) often affect the surface sediments of coastal areas, and impact the sediment imprint. Although the sediment magnetism is sensitive to coastal changes, the understanding of the coastal magnetic minerals' redistribution affected by TCs is far from adequate. Here, the magnetic and grain-size records from the seafloor sediments along the Leizhou Peninsula coast in South China before and after two violent TCs (Mangkhut and Barijat) occurred in September 2018 are present. The magnetic minerals mainly consist of magnetite, hematite, and goethite. For most sites, the content of hematite increased compared to magnetite and the magnetic minerals became coarser after the TCs subsided, while the amount of fine clay (<2 mu m) decreased and the amount of coarse sand (500-2000 mu m) increased. This is due to the preferential deposition of the lamellae hematite from the soils and the enhanced hydrodynamic transportation of suspended sediments. The mangrove forest resists the change to a certain degree, especially in the Leizhou Bay. The magnetic and grain-size properties are sensitive to the TC-induced deposits, and provide convincing tools to aid in detecting the paleo-TC activity in tropical coastal regions.
资助项目	Guangdong Natural Science Foundation[2018B030311056] ; Guangdong Natural Science Foundation[2019A1515110195] ; China Postdoctoral Science Foundation[2019M652936] ; Open Fund of State Key Laboratory of Loess and Quaternary Geology (SKLLOG2016)
WOS关键词	ENVIRONMENTAL MAGNETISM ; CARBON SEQUESTRATION ; ACQUISITION CURVES ; LEIZHOU PENINSULA ; SEA ; STORM ; COMPONENTS ; RIVER ; GULF ; SIGNATURES
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000672158300001
资助机构	Guangdong Natural Science Foundation ; China Postdoctoral Science Foundation ; Open Fund of State Key Laboratory of Loess and Quaternary Geology (SKLLOG2016)
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16831]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Li, Mingkun; Ouyang, Tingping
作者单位	1.South China Normal Univ, Sch Geog, Guangzhou 510631, Peoples R China 2.State Ocean Adm, Zhuhai Cent Stn Marine Environm Monitoring, Zhuhai 519015, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Li, Mingkun,Chen, Wenshen,Ouyang, Tingping,et al. The impact of energetic tropical cyclones (typhoons) on the modern sediment magnetism along the South China coast[J]. CONTINENTAL SHELF RESEARCH,2021,224:12.
APA	Li, Mingkun,Chen, Wenshen,Ouyang, Tingping,He, Chenjian,Kuang, Yuxing,&Peng, Shasha.(2021).The impact of energetic tropical cyclones (typhoons) on the modern sediment magnetism along the South China coast.CONTINENTAL SHELF RESEARCH,224,12.
MLA	Li, Mingkun,et al."The impact of energetic tropical cyclones (typhoons) on the modern sediment magnetism along the South China coast".CONTINENTAL SHELF RESEARCH 224(2021):12.