Stable isotopes and rare earth element compositions of ancient cold seep carbonates from Enza River, northern Apennines (Italy): Implications for fluids sources and carbonate chimney growth

doi:10.1016/j.marpetgeo.2019.06.033

GIEC OpenIR

	Stable isotopes and rare earth element compositions of ancient cold seep carbonates from Enza River, northern Apennines (Italy): Implications for fluids sources and carbonate chimney growth
	Zhu, Bi 1; Ge, Lu 1,2; Yang, Tao 3; Jiang, Shaoyong 4; Lv, Xuan 5
	2019-11-01
发表期刊	MARINE AND PETROLEUM GEOLOGY
ISSN	0264-8172
卷号	109 页码:434-448
通讯作者	Zhu, Bi(61744432@qq.com) ; Ge, Lu(gelu211@163.com)
摘要	Cold seep carbonates are remarkable fossil records of hydrocarbon seepage and related conduits. In the present research, we analysed the carbon and oxygen isotopes, rare earth element (REE) and trace element content of carbonate chimneys and concretions in the Pleistocene Argille Azzurre Formation, northern Apennines, Italy. Strong C-13 depletions (values as low as - 40.3 parts per thousand) observed in both carbonate concretions and chimneys indicate that anaerobic oxidation of biogenic methane played a major role in the formation of these carbonates. Slightly higher delta C-13 values mostly found in the outer layers of the carbonate chimneys reflect a contribution of inorganic carbon from seawater. REE patterns reveal the carbonates formed under mostly anoxic pore water conditions. Combined REE and trace element data reveal the growth of chimneys occurred from the outside-in, with the outer chimney walls experiencing rapid growth. Excellent correlations between Ce/Ce*, REE contents, and La-N/Sm-N and Y/Ho ratios observed in the chimney walls provide additional evidence for the influence of seawater in the formation of the chimneys. Meanwhile, O isotopic compositions of the samples suggest an O-18-depleted fluid was involved in carbonate precipitation. This study has major implications for tracking fluid sources of seep carbonates and patterns of carbonate chimney growth.
关键词	Cold seep carbonates Enza river Stable isotopes Rare earth elements Carbonate chimney growth
DOI	10.1016/j.marpetgeo.2019.06.033
关键词[WOS]	EASTERN MEDITERRANEAN SEA ; SOUTH CHINA SEA ; AUTHIGENIC CARBONATES ; HYDROCARBON SEEPS ; CERIUM ANOMALIES ; HYDRATE RIDGE ; PORE WATERS ; CONTINENTAL-SLOPE ; REDOX CONDITIONS ; ALAMINOS CANYON
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41302018] ; National Natural Science Foundation of China[41873011] ; Fundamental Research Funds for the Central Universities[2017B16214] ; Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences[Y909kl1001]
WOS研究方向	Geology
项目资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000490044500030
出版者	ELSEVIER SCI LTD
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/25863
专题	中国科学院广州能源研究所
通讯作者	Zhu, Bi; Ge, Lu
作者单位	1.Hohai Univ, Inst Isotope Hydrol, Sch Earth Sci & Engn, Nanjing 210098, Jiangsu, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Nanjing Univ, Dept Earth Sci, State Key Lab Mineral Deposits Res, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China 4.China Univ Geosci, Collaborat Innovat Ctr Explorat Strateg Mineral R, State Key Lab Geol Proc & Mineral Resources, Fac Earth Resources, Wuhan 430074, Hubei, Peoples R China 5.Tongji Univ, Sch Ocean & Earth Sci, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Bi,Ge, Lu,Yang, Tao,et al. Stable isotopes and rare earth element compositions of ancient cold seep carbonates from Enza River, northern Apennines (Italy): Implications for fluids sources and carbonate chimney growth[J]. MARINE AND PETROLEUM GEOLOGY,2019,109:434-448.
APA	Zhu, Bi,Ge, Lu,Yang, Tao,Jiang, Shaoyong,&Lv, Xuan.(2019).Stable isotopes and rare earth element compositions of ancient cold seep carbonates from Enza River, northern Apennines (Italy): Implications for fluids sources and carbonate chimney growth.MARINE AND PETROLEUM GEOLOGY,109,434-448.
MLA	Zhu, Bi,et al."Stable isotopes and rare earth element compositions of ancient cold seep carbonates from Enza River, northern Apennines (Italy): Implications for fluids sources and carbonate chimney growth".MARINE AND PETROLEUM GEOLOGY 109(2019):434-448.