Zinc isotope perspective on global carbon cycling during the onset of the late Paleozoic icehouse

doi:10.1130/G52447.1

NIGPAS OpenIR

	Zinc isotope perspective on global carbon cycling during the onset of the late Paleozoic icehouse
通讯作者	Chen, Jitao([email protected])
	Zhong, Yutian 1,2; Chen, Jitao1,3 ; Liu, Sheng-Ao 4; Yuan, Chengshuai 5; Gao, Biao 1; Isson, Terry T.6; Algeo, Thomas J.7,8,9; Sheng, Qingyi 1; Chen, Bo1 ; Luo, Genming
	2024-10-21
发表期刊	GEOLOGY
ISSN	0091-7613
页码	6
摘要	The onset of the late Paleozoic icehouse coincided with a large global carbon-cycle perturbation (represented by the mid-Tournaisian carbon isotope excursion [TICE]), although the underlying cause of this isotopic event remains uncertain. Zinc (Zn), an essential micronutrient for plankton, has an isotopic composition (delta Zn-66) in seawater that is sensitive to subtle fluctuations in marine carbon (C) cycling. Here, we investigated C cycling during the TICE using paired carbonate delta Zn-66-delta C-13 and organic delta C-13 records from two widely spaced sections in South China. These records reveal coupling between delta Zn-66 and delta C-13 over an similar to 4 m.y. interval in the form of two positive excursions (Peaks I and II) separated by a negative shift (interpeak). Peak I is attributed to enhanced marine primary productivity (MPP), which was stimulated by increased micronutrient supply linked to enhanced silicate weathering and/or upwelling. The interpeak may record oxidation of remobilized organic matter from continental shelves exposed by glacio-eustatic sea-level fall, which, in turn, promoted MPP again and resulted in Peak II. Thus, the TICE records complex climate-carbon cycle feedbacks that may have led to large-scale organic carbon burial and driven stepwise cooling, marking the onset of a sustained late Paleozoic icehouse climate.
DOI	10.1130/G52447.1
收录类别	SCI
语种	英语
关键词[WOS]	OCEANIC MASS-BALANCE ; ORGANIC-CARBON ; BURIAL ; ZN
资助项目	National Natural Science Foundation of China[42293280] ; National Natural Science Foundation of China[42072035]
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:001338459100001
项目资助者	National Natural Science Foundation of China
出版者	GEOLOGICAL SOC AMER, INC
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44457
专题	中国科学院南京地质古生物研究所
通讯作者	Chen, Jitao
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Nanjing Coll, Nanjing 211135, Peoples R China 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 5.Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 6.Univ Waikato Tauranga, Te Aka Matuatua, Tauranga 3110, New Zealand 7.Univ Cincinnati, Dept Geosci, Cincinnati, OH 45221 USA 8.China Univ Geosci, State Key Labs Biogeol & Environm Geol & Geol Proc, Wuhan 430074, Peoples R China 9.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610059, Peoples R China 10.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Zhong, Yutian,Chen, Jitao,Liu, Sheng-Ao,et al. Zinc isotope perspective on global carbon cycling during the onset of the late Paleozoic icehouse[J]. GEOLOGY,2024:6.
APA	Zhong, Yutian.,Chen, Jitao.,Liu, Sheng-Ao.,Yuan, Chengshuai.,Gao, Biao.,...&Qie, Wenkun.(2024).Zinc isotope perspective on global carbon cycling during the onset of the late Paleozoic icehouse.GEOLOGY,6.
MLA	Zhong, Yutian,et al."Zinc isotope perspective on global carbon cycling during the onset of the late Paleozoic icehouse".GEOLOGY (2024):6.