文献类型：期刊文献

英文题名：Characteristics of hydrocarbons in sediment core samples from the northern Okinawa Trough

作者：Huang, Xin[1,2];Chen, Shuai[2];Zeng, Zhigang[2,3];Pu, Xiaoqiang[1];Hou, Qinghua[1]

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

年份：2017

卷号：115

期号：1-2

起止页码：507

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000394399800074)、、EI(收录号：20170703339931)、Scopus(收录号：2-s2.0-85008414286)、WOS

基金：This work was supported by the National Key Basic Research Program of China (grant no. 2013CB429700), the National Natural Science Foundation of China (grant no. 41325021, 41476044, 40830849 and 40376020), the Strategic Priority Research Program of the Chinese Academy of Sciences (grant no. XDA11030302),the Scientific and Technological Innovation Project Financially Supported by Qingdao National Laboratory for Marine Science and Technology (grant no. 2015ASKJ03), the National High Level Talent Special Support Program, the Innovative Talent Promotion Program (grant no. 2012RA2191), the Special Fund for the Taishan Scholar Program of Shandong Province (grant no. ts201511061), the AoShan Talents Program Supported by Qingdao National Laboratory for Marine Science and Technology (grant no. 2015ASTP-0S17), the Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences (no. MGE2015KG04), the Open Fund of the Key Laboratory of Submarine Geosciences, State Oceanic Administration, People's Republic of China (no. KSLG1503), and the program for scientific research start-up funds of Guangdong Ocean University (E15169). The authors would like to thank the crews of the HOBAB1 for their help with sampling operations, as well as Meng Qianxiang for his help with sampling analysis.

语种：英文

外文关键词：Okinawa Trough; Sediment core; Hydrocarbons; Hydrothermal activity; Volcanism

外文摘要：Sediment core samples from the northern Okinawa Trough (OT) were analyzed to determine abundances and distributions of hydrocarbons by gas chromatography-mass spectrometer (GC-MS). The results show that the n-alkanes in this sediment core conform to a bimodal distribution, and exhibit an odd-to-even predominance of high molecular weights compared to an even-to-odd predominance in low molecular weight n-alkanes with maxima at C-16 and C-18. The concentrations of bitumen, alkanes and polyaromatic hydrocarbons (PAHs) were higher in samples S10-07 than all others. Three maturity parameters as well as the ratios between parent phenanthrenes (Ps) and methylphenanthrenes (MPs) in samples S10-07 and S10-17 were higher. The distribution and composition of hydrocarbons in sample S10-07 suggest that one, or several, undetected hydrothermal fields may be present in the region of this sediment core. Results also suggest that volcanism may be the main reason for the observed distribution and composition of hydrocarbons in S10-17 sample. (C) 2016 Elsevier Ltd. All rights reserved.