Ice sheet and terrestrial input impacts on the 100-kyr ocean carbon cycle during the Middle Miocene

doi:10.1016/j.gloplacha.2021.103723

IEECAS OpenIR > 古环境研究室

	Ice sheet and terrestrial input impacts on the 100-kyr ocean carbon cycle during the Middle Miocene
	Ma, Xiaolin 1,2; Ma, Wentao 1,3; Tian, Jun 1; Yu, Jimin 4,5; Huang, Enqing 1
通讯作者	Ma, Xiaolin(86_PaleoMa@tongji.edu.cn) ; Tian, Jun()
	2022
发表期刊	GLOBAL AND PLANETARY CHANGE (IF:3.915[JCR-2016],4.28[5-Year])
ISSN	0921-8181
卷号	208 页码:9
摘要	The Middle Miocene (similar to 16-11.6 Ma) had atmospheric CO2 levels comparable to the present day, and thus the mechanisms controlling the interactions of the climate system and the carbon cycle during the Middle Miocene may have significant implications for future climate change. In this study, we examined the phase relationship between benthic foraminiferal delta O-18 and delta C-13 records, within the 100-kyr band, during the Late Quaternary and the Middle Miocene. Our results suggest that benthic foraminiferal delta O-18 and delta C-13 were highly coherent and inphase within the 100-kyr band during the Middle Miocene, in contrast to the anti-phased relationship during the Late Quaternary. However, the causes of this contrast remain elusive. We used a biogeochemical box model to explore the mechanisms of the in-phase relationship in the 100-kyr band during the Middle Miocene. The model results show that the in-phase relationship can be attributed to two mechanisms: (1) a shelf-basin carbonate shift regulated by sea-level fluctuations which originated from the growth and decay of the Antarctic ice sheet, within the 100-kyr band; and (2) changes in terrestrial carbon inputs and the biological pump driven by the discharge of riverine nutrients, which was regulated by precipitation variability in low latitudes, within the eccentricity-modulated precessional band. Thus, we propose that both high- and low-latitude processes played critical roles in the Middle Miocene carbon cycle, within the 100-kyr band. We further show that chemical weathering played a potential role in regulating the atmospheric pCO(2) on the orbital time scale during the Middle Miocene.
关键词	Middle Miocene Oxygen and carbon isotopes Carbon cycle Antarctic ice sheet Terrestrial inputs
DOI	10.1016/j.gloplacha.2021.103723
关键词[WOS]	EAST EQUATORIAL PACIFIC ; ATMOSPHERIC CO2 ; CLIMATE ; RECORD ; DELTA-C-13 ; CHEMISTRY ; EVOLUTION ; ATLANTIC ; DIOXIDE ; TEMPERATURE
收录类别	SCI ; SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; NSFC[42030403] ; NSFC[41776051] ; NSFC[41525020] ; NSFC[41706071] ; NSFC[42176094] ; 4th National Highlevel Personnel of Special Support Program of China ; National Key Research and Development Program of China[2018YFE0202401] ; State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences[SKLLQGPY2002]
WOS研究方向	Physical Geography ; Geology
项目资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; NSFC ; 4th National Highlevel Personnel of Special Support Program of China ; National Key Research and Development Program of China ; State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000740438500002
出版者	ELSEVIER
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17363
专题	古环境研究室
通讯作者	Ma, Xiaolin; Tian, Jun
作者单位	1.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 3.Minist Nat Resources, State Key Lab Satellite Ocean Environm Dynam, Inst Oceanog 2, Hangzhou 310012, Peoples R China 4.Polit Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 5.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Ma, Xiaolin,Ma, Wentao,Tian, Jun,et al. Ice sheet and terrestrial input impacts on the 100-kyr ocean carbon cycle during the Middle Miocene[J]. GLOBAL AND PLANETARY CHANGE,2022,208:9.
APA	Ma, Xiaolin,Ma, Wentao,Tian, Jun,Yu, Jimin,&Huang, Enqing.(2022).Ice sheet and terrestrial input impacts on the 100-kyr ocean carbon cycle during the Middle Miocene.GLOBAL AND PLANETARY CHANGE,208,9.
MLA	Ma, Xiaolin,et al."Ice sheet and terrestrial input impacts on the 100-kyr ocean carbon cycle during the Middle Miocene".GLOBAL AND PLANETARY CHANGE 208(2022):9.