气候变化领域集成服务门户(CCPortal): Abrupt conclusion of the late Miocene-early Pliocene biogenic bloom at 4.6-4.4 Ma

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DOI	10.1038/s41467-021-27784-6
	Abrupt conclusion of the late Miocene-early Pliocene biogenic bloom at 4.6-4.4 Ma
	Karatsolis B.–T.; Lougheed B.C.; De Vleeschouwer D.; Henderiks J.
发表日期	2022
ISSN	2041-1723
卷号	13 期号:1
英文摘要	The late Miocene-early Pliocene biogenic bloom was an extended time interval characterised by elevated ocean export productivity at numerous locations. As primary productivity is nutrient-limited at low-to-mid latitudes, this bloom has been attributed to an increase or a redistribution of available nutrients, potentially involving ocean-gateway or monsoon-related mechanisms. While the exact causal feedbacks remain debated, there is even less consensus on what caused the end of the biogenic bloom. Here, we compile Mio-Pliocene paleoproductivity proxy data from all major ocean basins to evaluate the timing and pacing of this termination. This systematic analysis reveals an abrupt and sustained reduction in low-latitude ocean productivity at 4.6–4.4 Ma. The decline in productivity coincided with a prolonged period of low orbital eccentricity and a shift towards lower-amplitude obliquity, an astronomical configuration linked to reduced East Asian Monsoon intensity and decreased riverine nutrient supply. © 2022, The Author(s).
语种	英语
scopus关键词	eccentricity; marine environment; midlatitude environment; Miocene; nutrient availability; paleoproductivity; Pliocene; primary production; article; latitude; nutrient supply; productivity; sea; Upper Miocene; Zanclean; climate; fossil; geography; paleontology; physiology; plankton; sediment; time factor; weather; Climate; Fossils; Geography; Geologic Sediments; Oceans and Seas; Paleontology; Plankton; Time Factors; Weather
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251255
作者单位	Department of Earth Sciences, Uppsala University, Villavägen 16, Uppsala, 75236, Sweden; MARUM-Center for Marine and Environmental Sciences and Department of Geosciences, University of Bremen, Leobenerstr 8, Bremen, 28359, Germany; Institute of Geology and Palaeontology, Westfälische Wilhelms-Universität, University of Münster, Corrensstr 24, Münster, 48149, Germany
推荐引用方式 GB/T 7714	Karatsolis B.–T.,Lougheed B.C.,De Vleeschouwer D.,et al. Abrupt conclusion of the late Miocene-early Pliocene biogenic bloom at 4.6-4.4 Ma[J],2022,13(1).
APA	Karatsolis B.–T.,Lougheed B.C.,De Vleeschouwer D.,&Henderiks J..(2022).Abrupt conclusion of the late Miocene-early Pliocene biogenic bloom at 4.6-4.4 Ma.Nature Communications,13(1).
MLA	Karatsolis B.–T.,et al."Abrupt conclusion of the late Miocene-early Pliocene biogenic bloom at 4.6-4.4 Ma".Nature Communications 13.1(2022).