Tectonic and Orbital Imprints in the Redox History of Japan Sea Since the Pliocene

doi:10.1029/2021PA004333

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Tectonic and Orbital Imprints in the Redox History of Japan Sea Since the Pliocene
	Zhao, Debo 4; Wan, Shiming 2,3,4; Zhai, Lina 4; Shi, Xuefa 1; Li, Anchun 4
刊名	PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
	2022-02-01
卷号	37 期号:2 页码:14
ISSN号	2572-4517
DOI	10.1029/2021PA004333
通讯作者	Zhao, Debo(zhaodeho@qdio.ac.cn)
英文摘要	Oxygen content in the deep ocean plays a vital role in biogeochemical processes and has significant impacts on the global carbon cycle. The Japan Sea is a semiclosed basin with only shallow water connection to the Western North Pacific, and its redox history has been sensitively affected by tectonic and climatic changes in the past. Studies of paleo-redox changes in the Japan Sea focused on the tectonic and orbital scales since the Pliocene remain scarce to date. Here, we present two high-resolution paleo-redox records during the last 4 Ma at IODP Sites U1425 and U1430 drilled in the Japan Sea. Our authigenic U (uranium) and U/Al records suggest remarkable changes of Japan Sea redox history from relatively oxic to periodic oxic-anoxic conditions at similar to 1.7 Ma. This was mainly caused by the restricted input of North Pacific oxygen-rich water due to the uplift of northeastern Japan during late Pliocene and early Pleistocene, and opening of the Tsushima Strait and the periodic intrusion of Tsushima Warm Current following sea level change during glacial-interglacial cycles since similar to 1.7 Ma. Orbital changes of Japan Sea redox history suggest the existence of a long eccentricity cycle of 400 ka associated with East Asian summer monsoon rainfall evolution throughout the last 4 Ma. Changes of the amplitude of sea level and inflow of Tsushima Warm Current combined with the East Asian monsoon evolution produced eccentricity and obliquity cycles in Japan Sea redox environment after similar to 1.7 Ma, as well as a transition from relatively oxic to anoxic conditions during glacials before and after Middle Pleistocene Transition. Plain Language Summary Oxygen is a prerequisite for marine organisms' cellular respiration. Changes in the ocean oxygen levels can significantly impact the ocean ecosystem and even the global carbon cycle. During the geological time, shifts between ocean anoxia and oxygenation can be regulated by tectonic and climatic changes through water mass vertical mixing and current evolution. Here, we provided two paleoredox records during the last 4 Ma at IODP Sites U1425 and U1430 drilled in the Japan Sea. Remarkable changes from relatively oxic to periodic oxic-anoxic conditions in the Japan Sea have been found at similar to 1.7 Ma. This was mainly caused by the restricted input of the North Pacific oxygen-rich water due to the uplift of the northeastern Japanese islands, and the opening of the Tsushima Strait in the southwestern Japanese islands and periodic intrusion of Tsushima Warm Current following sea level change, as well as East Asian monsoon evolution during glacial-interglacial cycles since similar to 1.7 Ma.
资助项目	National Natural Science Foundation of China[42176063] ; National Natural Science Foundation of China[41806055] ; National Natural Science Foundation of China[41806058] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDB40010100]
WOS研究方向	Geology ; Oceanography ; Paleontology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000763496800006
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/178251]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Zhao, Debo
作者单位	1.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Debo,Wan, Shiming,Zhai, Lina,et al. Tectonic and Orbital Imprints in the Redox History of Japan Sea Since the Pliocene[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2022,37(2):14.
APA	Zhao, Debo,Wan, Shiming,Zhai, Lina,Shi, Xuefa,&Li, Anchun.(2022).Tectonic and Orbital Imprints in the Redox History of Japan Sea Since the Pliocene.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,37(2),14.
MLA	Zhao, Debo,et al."Tectonic and Orbital Imprints in the Redox History of Japan Sea Since the Pliocene".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 37.2(2022):14.