Tropical ocean temperatures and changes in terrigenous flux during the Paleocene-Eocene Thermal Maximum in southern Tibet

doi:10.1016/j.gloplacha.2023.104289

	Tropical ocean temperatures and changes in terrigenous flux during the Paleocene-Eocene Thermal Maximum in southern Tibet
	Jin, Simin 8,9,10; Li, Guobiao 7; Li, Juan 6; Hu, Xiumian 5; Yang, Huan 4; Huang, Chunju 9,10; Baoke, Zhantu 7; Algeo, Thomas J.2,3,10; Kemp, David B.1,9,10
刊名	GLOBAL AND PLANETARY CHANGE
	2023-11-01
卷号	230 页码:14
关键词	PETM Carbonate platform Paleoclimate Sea level Carbon isotopes GDGT
ISSN号	0921-8181
DOI	10.1016/j.gloplacha.2023.104289
通讯作者	Kemp, David B.(davidkemp@cug.edu.cn)
英文摘要	The Paleocene-Eocene Thermal Maximum (PETM,-56 Ma) was an extreme climate warming event of the early Cenozoic. The development and ecology of carbonate platforms are highly sensitive to changes in SSTs, sea level and terrestrial detrital input. However, no record of SST changes during the PETM has yet been reported from a shallow marine carbonate platform. Here, we reconstruct SSTs for two shallow marine carbonate PETM sections in present-day southern Tibet from the distribution of isoprenoid glycerol dialkyl glycerol tetraethers (isoGDGT). Our dataset demonstrates that the temperature of the tropical eastern Tethys likely increased 3 to 5 degrees C during the PETM (depending on the TEX86 calibration used), and it supports a reduction of 2 degrees C in the meridional gradient between middle and low latitudes. Elemental data and quartz content imply an increase in terrigenous flux prior to the onset of the CIE, possibly linked to initial PETM warming. However, inconsistent changes in terrigenous flux at other PETM sections in the eastern Tethys suggest a variable response modulated by sea-level change and hinterland weathering, erosion and sediment delivery.
资助项目	National Natural Science Foundation of China[42230208] ; National Natural Science Foundation of China[42272033] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41972031] ; National Natural Science Foundation of China[42172039]
WOS关键词	SEA-SURFACE TEMPERATURE ; CONTINENTAL-SHELF ; LATEST PALEOCENE ; STABLE-ISOTOPES ; ORGANIC-MATTER ; PACIFIC-OCEAN ; ARCTIC-OCEAN ; PROXY DATA ; BASIN ; EVOLUTION
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001119919400001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42791]
专题	中国科学院南京地质古生物研究所
通讯作者	Kemp, David B.
作者单位	1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 2.Univ Cincinnati, Dept Geosci, Cincinnati, OH USA 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan, Peoples R China 4.China Univ Geosci, Sch Geog & Informat Engn, Hubei Key Lab Crit Zone Evolut, Wuhan 430074, Peoples R China 5.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 6.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 7.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 8.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan 430074, Peoples R China 9.China Univ Geosci, Sch Earth Sci, Hubei Key Lab Crit Zone Evolut, Wuhan 430074, Peoples R China 10.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Jin, Simin,Li, Guobiao,Li, Juan,et al. Tropical ocean temperatures and changes in terrigenous flux during the Paleocene-Eocene Thermal Maximum in southern Tibet[J]. GLOBAL AND PLANETARY CHANGE,2023,230:14.
APA	Jin, Simin.,Li, Guobiao.,Li, Juan.,Hu, Xiumian.,Yang, Huan.,...&Kemp, David B..(2023).Tropical ocean temperatures and changes in terrigenous flux during the Paleocene-Eocene Thermal Maximum in southern Tibet.GLOBAL AND PLANETARY CHANGE,230,14.
MLA	Jin, Simin,et al."Tropical ocean temperatures and changes in terrigenous flux during the Paleocene-Eocene Thermal Maximum in southern Tibet".GLOBAL AND PLANETARY CHANGE 230(2023):14.