NDLI: Sources and distribution of sedimentary organic matter along the northern Bering and Chukchi Seas.

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Sources and distribution of sedimentary organic matter along the northern Bering and Chukchi Seas.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Xu, Fanglu Jin, Haiyan Ji, Zhongqiang Chen, Jianfang Loh, Pei Sun
Description	Country affiliation: China Author Affiliation: Xu F ( Institute of Marine Chemistry and Environment, Department of Marine Sciences, Ocean College, Zhejiang University, Zhoushan 316003, China.); Jin H ( Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, The State Oceanic Administration, Hangzhou 310012, China.); Ji Z ( Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, The State Oceanic Administration, Hangzhou 310012, China.); Chen J ( Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, The State Oceanic Administration, Hangzhou 310012, China.); Loh PS ( Institute of Marine Chemistry and Environment, Department of Marine Sciences, Ocean College, Zhejiang University, Zhoushan 316003, China.)
Abstract	In this study, lignin-derived phenols were used to determine the sources and distribution of sedimentary organic matter along the northern Bering Sea and Chukchi Sea of the Arctic Ocean. The lignin parameter syringyl/vanillyl (S/V) and cinnamyl/vanillyl (C/V) ratios are used to indicate vegetation sources; and the ratios of vanillic acid/vanillin, (Ad/Al)v and syringic acid/syringaldehyde, (Ad/Al)s are used as indicators of lignin diagenesis. Results showed the predominance of woody gymnosperm signal at the easternmost location in the northern Bering Sea, a mixture of refractory non-woody angiosperm and fresher gymnosperm tissues in the Chukchi Sea, and signal of fresher woody gymnosperm tissues in the northernmost locations in the Chukchi Sea. The lignin materials showed gradual increase in decomposition stage during transport along the northern Bering Sea. Hydrodynamic sorting process, which is the retention of coarser materials nearshore and transportation of finer particles farther offshore, most probably occurred along the east coast of the northern Bering Sea. In Chukchi Sea, the non-woody angiosperm tissues could have originated from the Canadian Arctic and gymnosperm tissues could be from the Russian Arctic side. The fresher materials in the northernmost Chukchi Sea could have been transported here via the ice-rafting process. Detection of fresh lignin materials and the occurrence of lignin decomposition mean that this region could be sensitive to the impact of climate change.
File Format	HTM / HTML
ISSN	10010742
Journal	Journal of Environmental Sciences
Volume Number	52
Language	English
Publisher	Elsevier
Publisher Date	2017-02-01
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Environmental Health
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Medicine Environmental Engineering

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