Lead, Sulfur, and Oxygen Isotope Systematics in Hydrothermal Precipitates from the 14 degrees S Hydrothermal Field, South Mid-Atlantic Ridge

doi:10.1111/rge.12101

	Lead, Sulfur, and Oxygen Isotope Systematics in Hydrothermal Precipitates from the 14 degrees S Hydrothermal Field, South Mid-Atlantic Ridge
	Li, Bing 1,2; Shi, Xuefa 1; Li, Chuanshun 1,2; Wang, Jixin 3; Pei, Yanliang 1; Ye, Jun 1,2
刊名	RESOURCE GEOLOGY
	2016-07
卷号	66 期号:3 页码:274-285
关键词	14 degrees S hydrothermal field crust permeability O isotope Pb isotope S isotope silica-rich sulfide
ISSN号	1344-1698
DOI	10.1111/rge.12101
英文摘要	At the inside corner between the South Mid-Atlantic Ridge (SMAR) and the Cardno fracture zone, the 14 degrees S hydrothermal field, with its abundant silica-rich sulfides, was identified as a volcanic massif, which provided the first opportunity to study inside corner-related hydrothermal mineralization. S, Pb, and O isotopes were measured in hydrothermal sulfide samples from the two sites (volcanic top and slope sites) in the 14 degrees S field. The homogeneous Pb isotope values (Pb-207/Pb-204=15.466-15.472; Pb-206/Pb-204=18.242-18.252) and the S-34 values (top site, +6.3 to +6.85 parts per thousand; slope site, +2.37 to +3.36 parts per thousand) suggest that the source of metals and most of the sulfur is the upper crust, whereas some sulfur is sourced from downward-penetrating seawater, especially in the top site. The calculated oxygen isotope equilibration temperatures from quartz and seawater are between 94 and 144 degrees C for the top site and between 179 and 196 degrees C for the slope site. These isotopic proxies, together with geological background survey data, have an important implication: Discrepancies between the sites may result from variations in crust permeability, which also affect the mixing level between downward-penetrating seawater and upward hydrothermal end-member fluids and determine the various mineralization types.
资助项目	National Special fund for marine public welfare research[201405036-2]
WOS关键词	EAST PACIFIC RISE ; DE-FUCA RIDGE ; MASSIVE SULFIDE DEPOSITS ; SEA-DRILLING-PROJECT ; BACK-ARC ; IRON ISOTOPES ; LUCKY STRIKE ; GORDA RIDGE ; VENT FLUIDS ; SR ISOTOPE
WOS研究方向	Geology ; Mineralogy
语种	英语
出版者	WILEY
WOS记录号	WOS:000379774100004
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27526]
专题	自然资源部第一海洋研究所
通讯作者	Li, Bing; Shi, Xuefa
作者单位	1.First Inst Oceanog, State Ocean Adm, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China 3.Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Li, Bing,Shi, Xuefa,Li, Chuanshun,et al. Lead, Sulfur, and Oxygen Isotope Systematics in Hydrothermal Precipitates from the 14 degrees S Hydrothermal Field, South Mid-Atlantic Ridge[J]. RESOURCE GEOLOGY,2016,66(3):274-285.
APA	Li, Bing,Shi, Xuefa,Li, Chuanshun,Wang, Jixin,Pei, Yanliang,&Ye, Jun.(2016).Lead, Sulfur, and Oxygen Isotope Systematics in Hydrothermal Precipitates from the 14 degrees S Hydrothermal Field, South Mid-Atlantic Ridge.RESOURCE GEOLOGY,66(3),274-285.
MLA	Li, Bing,et al."Lead, Sulfur, and Oxygen Isotope Systematics in Hydrothermal Precipitates from the 14 degrees S Hydrothermal Field, South Mid-Atlantic Ridge".RESOURCE GEOLOGY 66.3(2016):274-285.