文献类型：期刊文献

英文题名：Characteristics of hydrocarbons in hydrothermal products of the Clam hydrothermal field from the Okinawa trough

作者：Huang, Xin[1,2,3,4];Huang, Chao[1,4];Qi, Yali[4];Wang, Xiaoyuan[2,3];Cao, Hansheng[1,4]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China;[3]Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China;[4]Guangdong Ocean Univ, Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China

年份：2021

卷号：167

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000655696500011)、、EI(收录号：20211210126197)、Scopus(收录号：2-s2.0-85102850711)、WOS

基金：This work was supported by the National Natural Science Foundation of China (grant Nos. 42006065, 41903067), the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (grant No. XDB42020402), the Project of Enhancing School with Innovation of the Education Commission of Guangdong Province (grant No. 230419081), the Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences (grant No. MGE2018KG13), the Special Fund for the Nanhai Young Scholar Program of Guangdong Ocean University (grant No. 573118019), the Innovative Team Project of Guangdong Universities (grant No. 2019KCXTF021), the Marine Science Research Team Project of Guangdong Ocean University (grant No. 002026002004), and the Program for Scientific Research Start-up Funds of Guangdong Ocean University (grant No. E15169). The authors would like to thank the crew of the HOBAB4 for their help with sampling operations as well as Chang Jiang and Meng Qianxiang for their help with sample analysis.

语种：英文

外文关键词：Clam hydrothermal field; Hydrothermal products; Hydrocarbons; Source

外文摘要：The hydrothermal products of the Clam hydrothermal field from the Okinawa Trough were analyzed by gas chromatography-mass spectrometry to determine abundances of hydrocarbons. The n-alkanes in the hydrothermal products conformed to a bimodal distribution and exhibited an odd-to-even predominance of high molecular weight and an even-to-odd predominance of low molecular weight n-alkanes with maxima at C16 and C18. The total concentration of n-alkanes in hydrothermal sediment was much higher than that in hydrothermal sulfide and altered rock. The carbon isotopic value of individual n-alkanes in hydrothermal sediment was slightly higher than that in pelagic sediment. The concentrations and individual carbon isotopic compositions of n-alkanes suggest that the n-alkanes in hydrothermal products may be mainly the result of the metabolic activity of submarine microorganisms. Additionally, the present results suggest that the abiogenic contribution to source of hydrocarbons in hydrothermal products of the Clam hydrothermal field from the Okinawa Trough should not be ignored.