Magnetostratigraphic framework and magnetic properties of modern sediment in the Yellow River Delta

doi:10.6038/cjg2019M0158

	Magnetostratigraphic framework and magnetic properties of modern sediment in the Yellow River Delta
	Wang WanZhang 1,2; Zhou LiangYong 3,4; Duan ZongQi 1,8; Jiang ZhaoXia 5,8; Liu JianXing 6,8; Liu QingSong 7,8
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2019-05
卷号	62 期号:5 页码:1772-1788
关键词	Modern Yellow River delta Magnetostratigraphy Environmental magnetism Sedimentary environmental evolution
ISSN号	0001-5733
DOI	10.6038/cjg2019M0158
英文摘要	Magnetostratigraphic and rock magnetic studies have been conducted on sediments Core Z07 from the Yellow River Delta. Constrained by the deposition rate and paleomagnetic secular variation curves, we constructed a reliable chronological framework. Rock magnetic results indicate that the main magnetic minerals are single domain (SD) magnetites with considerable amount of superparamgnetic (SP) particles. The grain size and concentration of magnetic particles in sediments change significantly with depths. Compared to the bottom sediment, the uppermost part has lower concentrations of SP and SD ferrimagnetic grains. We attribute these changes occurred around 2003 mainly to the Water and Sediment Regulation Scheme (WSRS) project launched by the Chinese government, which focuses on solving the sedimentation reservoir problems at the lower reaches of the Yellow River. Along with the continuous implementations of WSRS, the erosion rate of lower reach of the Yellow River increased. It became a new sediment source and the median grain size of suspended sediment in Lijin station increased accordingly, which results in elevated sediment loads. Therefore, this new source of sediment may cause the differences of magnetic properties around 2003.
WOS关键词	SECULAR VARIATION RECORDS ; REMANENT MAGNETIZATION ; ACCUMULATION RATES ; GEOMAGNETIC-FIELD ; REGULATION SCHEME ; HUANGHE ; LAKE ; CHINESE ; CS-137
WOS研究方向	Geochemistry & Geophysics
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000467308600016
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24667]
专题	自然资源部第一海洋研究所
通讯作者	Liu QingSong
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Geol Survey, Qingdao Inst Marine Geol, Qingdao 266071, Shandong, Peoples R China 4.China Geol Survey, Key Lab Coastal Wetland Biogeosci, Qingdao 266071, Shandong, Peoples R China 5.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, MOE, Coll Marine Geosci, Qingdao 266100, Shandong, Peoples R China 6.SOA, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China 7.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China 8.Qingdao Natl Oceanog Lab Marine Sci & Technol, Lab Marine Geol & Environm, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang WanZhang,Zhou LiangYong,Duan ZongQi,et al. Magnetostratigraphic framework and magnetic properties of modern sediment in the Yellow River Delta[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(5):1772-1788.
APA	Wang WanZhang,Zhou LiangYong,Duan ZongQi,Jiang ZhaoXia,Liu JianXing,&Liu QingSong.(2019).Magnetostratigraphic framework and magnetic properties of modern sediment in the Yellow River Delta.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(5),1772-1788.
MLA	Wang WanZhang,et al."Magnetostratigraphic framework and magnetic properties of modern sediment in the Yellow River Delta".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.5(2019):1772-1788.