Research of the sulfate-methane transition zone (SMTZ)in sediments of 973-4 column in continental slope of Northern South China Sea

CORC > 厦门大学 > 海洋环境－已发表论文

	Research of the sulfate-methane transition zone (SMTZ)in sediments of 973-4 column in continental slope of Northern South China Sea
	Zhang, Jie ; Lei, Huai-Ya ; Ou, Wen-Jia ; Yang, Yu-Feng ; Gong, Chu-Jun ; Shi, Chun-Xiao ; Lei HY(雷怀彦)
刊名	http://dx.doi.org/10.11764/j.issn.1672-1926.2014.11.1811
	2014
关键词	Biogeochemistry Isotopes Methane Pyrites Sulfur Sulfur compounds
英文摘要	In terms of two different driving modes on the background of methane leakage, a series of studies on total sulfur (TS), acid volatile sulfide (AVS), δ34Spyrite and SO42- of seawater have been carried out. The results of above studies showed: (1)The content of TS from 390cm and 610-890cm are slightly higher than those from the adjacent layers, varying from 0.3% to 0.7%; (2)AVS slowly increased from 610cm and reached 565μmol/g at 868cm, finally soared to 9 315μmol/g at 898cm; (3)δ34SPyrites increased gradually from -40.9‰ to 17.9‰; (4)The content of SO4-2 gradually declined during 90-900cm, and stabilized where it was under 900cm. The study shows that: both organic oxidation and anaerobic oxidation of methane can drive sulfate reduction in the study area; sulfate-methane transition zone could be divided into two parts by several factors such as TS and δ34Spyrite. From the distribution of sulfur isotope, AVS and TS, the depth of sulfate-methane interface (SMI)in this area is just over 900cm. The shallow SMI is a strong signal of gas hydrate reservoir which may exist in the deeper layer of the study area. Combined with the research on microbiology, a coupling phenomenon exists between the regional geochemical conditions and microbial distribution.
语种	英语
出版者	Science Press
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88257]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Zhang, Jie,Lei, Huai-Ya,Ou, Wen-Jia,et al. Research of the sulfate-methane transition zone (SMTZ)in sediments of 973-4 column in continental slope of Northern South China Sea[J]. http://dx.doi.org/10.11764/j.issn.1672-1926.2014.11.1811,2014.
APA	Zhang, Jie.,Lei, Huai-Ya.,Ou, Wen-Jia.,Yang, Yu-Feng.,Gong, Chu-Jun.,...&雷怀彦.(2014).Research of the sulfate-methane transition zone (SMTZ)in sediments of 973-4 column in continental slope of Northern South China Sea.http://dx.doi.org/10.11764/j.issn.1672-1926.2014.11.1811.
MLA	Zhang, Jie,et al."Research of the sulfate-methane transition zone (SMTZ)in sediments of 973-4 column in continental slope of Northern South China Sea".http://dx.doi.org/10.11764/j.issn.1672-1926.2014.11.1811 (2014).