High-resolution reconstruction of sedimentary organic matter variability during the Holocene in the mud area of the Yellow Sea using multiple organic geochemical proxies

doi:10.1016/j.quaint.2018.10.012

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院边缘海地质重点实验室

	High-resolution reconstruction of sedimentary organic matter variability during the Holocene in the mud area of the Yellow Sea using multiple organic geochemical proxies
	Zhou, Liping 4,5; Xiang, Rong 3; Zhang, Xiaodong 2; Xing, Lei ; Jiang, Yiqing ; Wu, Xiuning
刊名	QUATERNARY INTERNATIONAL
	2019
卷号	503 页码:178
关键词	Sedimentary organic matter Biomarker Holocene Yellow Sea
ISSN号	1040-6182
DOI	10.1016/j.quaint.2018.10.012
英文摘要	As a result of terrestrial input and local circulation, an area containing continuously deposited mud with abundant organic matter (OM) has formed in the Yellow Sea (YS) off the Shandong Peninsula, China, during the Holocene. The understanding of temporal variations in sedimentary organic matter (SOM) from this mud area helps to evaluate the influences of Yellow River discharge and marine productivity on the burial of organic matter in the YS. In this study, multiple organic geochemical proxies were used to reconstruct Holocene changes in SOM in a sediment core (A02C) recovered from the mud area of the YS. Higher total organic carbon (TOC) and biomarker contents during the early Holocene relative to the middle and late Holocene are attributed to sea-level fluctuations. The delta C-13 values of TOC (delta C-13(TOC)) range from -21.8 parts per thousand to -23.5 parts per thousand, becoming more positive from the bottom to the top of the core. TMBR' (terrestrial and marine biomarker ratio) values vary from 0.43 to 0.80, with a decreasing trend during the Holocene. The decrease in TOM contribution was related to elevated sea-level, shifting of the mouth of the Yellow River, and weakening of the East Asian Winter Monsoon (EAWM) during the Holocene. A mixing model with three end-members, based on delta C-13(TOC) and TMBR', reveals that the contribution of soil OM (average 42%) is higher than that of plant OM (average 17%). Simultaneous decreases in the plant OM fraction and the marine OM fraction occurred around 10.3, 8.2, 5.9, 4.2, and 2.8 kyr BP, corresponding to drift-ice events in the North Atlantic. Spectral analyses also reveal that all three OM fractions exhibit 1015-year periodicity and that the soil and plant OM fractions display 1420-year periodicity, consistent with the 1000-year cycle of solar activity and the 1500-year cycle of the Kuroshio Current (KC), respectively.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17980]
专题	南海海洋研究所_中科院边缘海地质重点实验室
作者单位	1.Peking Univ, Inst Ocean Res, Beijing 100871, Peoples R China 2.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China 3.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, Minist Educ, Qingdao 266100, Peoples R China 4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China 5.Peking Univ, Dept Geog, Lab Earth Surface Proc, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Liping,Xiang, Rong,Zhang, Xiaodong,et al. High-resolution reconstruction of sedimentary organic matter variability during the Holocene in the mud area of the Yellow Sea using multiple organic geochemical proxies[J]. QUATERNARY INTERNATIONAL,2019,503:178, 188.
APA	Zhou, Liping,Xiang, Rong,Zhang, Xiaodong,Xing, Lei,Jiang, Yiqing,&Wu, Xiuning.(2019).High-resolution reconstruction of sedimentary organic matter variability during the Holocene in the mud area of the Yellow Sea using multiple organic geochemical proxies.QUATERNARY INTERNATIONAL,503,178.
MLA	Zhou, Liping,et al."High-resolution reconstruction of sedimentary organic matter variability during the Holocene in the mud area of the Yellow Sea using multiple organic geochemical proxies".QUATERNARY INTERNATIONAL 503(2019):178.