A Marine Barite Perspective of the Late Miocene Biogenic Bloom in the Equatorial Indian Ocean and Equatorial Western Atlantic Ocean

doi:10.1029/2024GL111748

NIGPAS OpenIR

	A Marine Barite Perspective of the Late Miocene Biogenic Bloom in the Equatorial Indian Ocean and Equatorial Western Atlantic Ocean
通讯作者	Yao, Weiqi([email protected])
	Wu, Xinying 1; Hu, Yue 1; Nan, Jingbo 1,2; Yao, Weiqi 1
	2024-11-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	51 期号:22 页码:11
摘要	The marine biological pump is crucial for removing excess carbon dioxide from the atmosphere to the ocean interior and seafloor sediments. The Late Miocene Biogenic Bloom (LMBB), marked by notable increases in biogenic components in marine sediments, provides insights into the response of the biological pump to climate change. However, understanding the timing, distribution, and cause of the LMBB remains limited. We use marine barite, a refractory mineral precipitating from the water column associated with carbon export, and other proxies to reconstruct productivity in the equatorial Indian Ocean and equatorial western Atlantic between 12 and 5 Ma. Multi-proxy records reveal the onset of the LMBB in the equatorial Indian Ocean at similar to 9 Ma, primarily driven by more vigorous upwelling during global cooling. We suggest that the steepened meridional temperature gradient and the Antarctic ice sheet expansion have strengthened ocean overturning, facilitating nutrient supply and biogenic bloom in upwelling regions.
关键词	marine barite Miocene biogenic bloom productivity upwelling
DOI	10.1029/2024GL111748
收录类别	SCI
语种	英语
关键词[WOS]	ISOTOPE RECORD ; ASIAN MONSOON ; ARABIAN SEA ; ICE-SHEET ; CLIMATE ; PACIFIC ; MIDDLE ; PRODUCTIVITY ; TEMPERATURE ; SEDIMENT
资助项目	National Natural Science Foundation of China ; National Key R&D Program of China[2022YFF0802900] ; Guangdong Natural Science Foundation[2024A1515012537] ; Science and Technology Innovation Committee of Shenzhen Municipality[20231114150312001] ; Undergraduate Teaching Quality and Education Reform Project[SJZLGC202460] ; [42376049]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001369021100001
项目资助者	National Natural Science Foundation of China ; National Key R&D Program of China ; Guangdong Natural Science Foundation ; Science and Technology Innovation Committee of Shenzhen Municipality ; Undergraduate Teaching Quality and Education Reform Project
出版者	AMER GEOPHYSICAL UNION
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44661
专题	中国科学院南京地质古生物研究所
通讯作者	Yao, Weiqi
作者单位	1.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xinying,Hu, Yue,Nan, Jingbo,et al. A Marine Barite Perspective of the Late Miocene Biogenic Bloom in the Equatorial Indian Ocean and Equatorial Western Atlantic Ocean[J]. GEOPHYSICAL RESEARCH LETTERS,2024,51(22):11.
APA	Wu, Xinying,Hu, Yue,Nan, Jingbo,&Yao, Weiqi.(2024).A Marine Barite Perspective of the Late Miocene Biogenic Bloom in the Equatorial Indian Ocean and Equatorial Western Atlantic Ocean.GEOPHYSICAL RESEARCH LETTERS,51(22),11.
MLA	Wu, Xinying,et al."A Marine Barite Perspective of the Late Miocene Biogenic Bloom in the Equatorial Indian Ocean and Equatorial Western Atlantic Ocean".GEOPHYSICAL RESEARCH LETTERS 51.22(2024):11.