Th-230/U-238 dating of hydrothermal sulfides from Duanqiao hydrothermal field, Southwest Indian Ridge

doi:10.1007/s11001-016-9279-y

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院新生代地质与环境重点实验室

	Th-230/U-238 dating of hydrothermal sulfides from Duanqiao hydrothermal field, Southwest Indian Ridge
	Yang, Weifang 1,2; Tao, Chunhui 2,3; Li, Huaiming 2; Liang, Jin 2; Liao, Shili 2; Long, Jiangping 1,2; Ma, Zhibang 4; Wang, Lisheng4
刊名	MARINE GEOPHYSICAL RESEARCH
	2017-06-01
卷号	38 期号:1-2 页码:71-83
关键词	Southwest Indian Ridge (Swir) Duanqiao Hydrothermal Sulfides Th-230/u-238 Dating Hydrothermal Activity Growth Rate
ISSN号	0025-3235
DOI	10.1007/s11001-016-9279-y
文献子类	Article
英文摘要	Duanqiao hydrothermal field is located between the Indomed and Gallieni fracture zones at the central volcano, at 50A degrees 28'E in the ultraslow-spreading Southwest Indian Ridge (SWIR). Twenty-eight subsamples from a relict chimney and massive sulfides were dated using the Th-230/U-238 method. Four main episodes of hydrothermal activity were determined according to the restricted results: 68.9-84.3, 43.9-48.4, 25.3-34.8, and 0.7-17.3 kyrs. Hydrothermal activity of Duanqiao probably started about 84.3 (+/- 0.5) kyrs ago and ceased about 0.737 (+/- 0.023) kyrs ago. The periodic character of hydrothermal activity may be related to the heat source provided by the interaction of local magmatism and tectonism. The estimated mean growth rate of the sulfide chimney is < 0.02 mm/yr. This study is the first to estimate the growth rate of chimneys in the SWIR. The maximum age of the relict chimney in Duanqiao hydrothermal filed is close to that of the chimneys from Mt. Jourdanne (70 kyrs). The hydrothermal activity in Dragon Flag field is much more recent than that of Duanqiao or Mt. Jourdanne fields. The massive sulfides are younger than the sulfides from other hydrothermal fields such as Rainbow, Sonne and Ashadze-2. The preliminarily estimated reserves of sulfide ores of Duanqiao are approximately 0.5-2.9 million tons.
WOS关键词	MID-ATLANTIC RIDGE ; DE-FUCA RIDGE ; EAST PACIFIC RISE ; SLOW-SPREADING RIDGE ; ENDEAVOR SEGMENT ; MASSIVE SULFIDES ; GROWTH-RATES ; CHRONOLOGY ; DEPOSITS ; AGES
WOS研究方向	Geochemistry & Geophysics ; Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000399698700008
资助机构	National Basic Research Program of China (973 Program)(2012CB417305) ; China Ocean Mineral Resources R & D Association "Twelfth Five-Year'' Major Program(DY125-11-R-01 ; Zhejiang Provincial Natural Science Foundation of China(Q16D060018) ; National Program on Global Change and Air-Sea Interaction, SOA(GASI-GEOGE-01) ; MOST of China(2016YFC 0600402) ; DY125-11-R-05) ; National Basic Research Program of China (973 Program)(2012CB417305) ; China Ocean Mineral Resources R & D Association "Twelfth Five-Year'' Major Program(DY125-11-R-01 ; Zhejiang Provincial Natural Science Foundation of China(Q16D060018) ; National Program on Global Change and Air-Sea Interaction, SOA(GASI-GEOGE-01) ; MOST of China(2016YFC 0600402) ; DY125-11-R-05) ; National Basic Research Program of China (973 Program)(2012CB417305) ; China Ocean Mineral Resources R & D Association "Twelfth Five-Year'' Major Program(DY125-11-R-01 ; Zhejiang Provincial Natural Science Foundation of China(Q16D060018) ; National Program on Global Change and Air-Sea Interaction, SOA(GASI-GEOGE-01) ; MOST of China(2016YFC 0600402) ; DY125-11-R-05) ; National Basic Research Program of China (973 Program)(2012CB417305) ; China Ocean Mineral Resources R & D Association "Twelfth Five-Year'' Major Program(DY125-11-R-01 ; Zhejiang Provincial Natural Science Foundation of China(Q16D060018) ; National Program on Global Change and Air-Sea Interaction, SOA(GASI-GEOGE-01) ; MOST of China(2016YFC 0600402) ; DY125-11-R-05)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/52967]
专题	地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者	Tao, Chunhui
作者单位	1.Zhejiang Univ, Sch Earth Sci, Hangzhou 310010, Zhejiang, Peoples R China 2.State Ocean Adm, Inst Oceanog 2, Key Lab Submarine Geosci, Hangzhou 310012, Zhejiang, Peoples R China 3.Zhejiang Univ, Ocean Coll, Hangzhou 310058, Zhejiang, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Yang, Weifang,Tao, Chunhui,Li, Huaiming,et al. Th-230/U-238 dating of hydrothermal sulfides from Duanqiao hydrothermal field, Southwest Indian Ridge[J]. MARINE GEOPHYSICAL RESEARCH,2017,38(1-2):71-83.
APA	Yang, Weifang.,Tao, Chunhui.,Li, Huaiming.,Liang, Jin.,Liao, Shili.,...&Wang, Lisheng.(2017).Th-230/U-238 dating of hydrothermal sulfides from Duanqiao hydrothermal field, Southwest Indian Ridge.MARINE GEOPHYSICAL RESEARCH,38(1-2),71-83.
MLA	Yang, Weifang,et al."Th-230/U-238 dating of hydrothermal sulfides from Duanqiao hydrothermal field, Southwest Indian Ridge".MARINE GEOPHYSICAL RESEARCH 38.1-2(2017):71-83.