海洋学报英文版18年1期文章——南大西洋洋中脊附近沉积物中烃类分布和组成研究

The distribution and composition of hydrocarbons in sediments of the South Mid-Atlantic Ridge

Author

HUANG Xin     GuangdongProvince Key Laboratory of Coastal Ocean Variation and Disaster Prediction,Guangdong Ocean University, Zhanjiang, China

CHEN Shuai    KeyLaboratory of Marine Geology and Environment, Institute of Oceanology, ChineseAcademy of Sciences, Qingdao, China; Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology, Qingdao, China

WANG Xiaoyuan    Key Laboratory of Marine Geology and Environment, Institute ofOceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for MarineMineral Resources, Qingdao National Laboratory for Marine Science andTechnology, Qingdao, China

ZHANG Shuwen      Guangdong Province Key Laboratory of Coastal Ocean Variation andDisaster Prediction, Guangdong Ocean University, Zhanjiang, China

CHEN Fajin     GuangdongProvince Key Laboratory of Coastal Ocean Variation and Disaster Prediction,Guangdong Ocean University, Zhanjiang, China

PU Xiaoqiang          Guangdong Province Key Laboratory of Coastal Ocean Variationand Disaster Prediction, Guangdong Ocean University, Zhanjiang, China

Abstract:

Sediment samples obtained from the South Mid-Atlantic Ridge are analyzed by a gas chromatography-mass spectrometer (GC-MS) for the abundances and distributions of hydrocarbons. The hydrocarbons in the samples exhibit a bimodal distribution of n-alkanes and are rich in 3-methylalkanes, 8-methylalkanes and 2, 4, (n-1)-trimethylalkanes, which may be the result of metabolic activity of benthic microorganism. Terpanes, hopanes and steranes are all enriched in the samples, which also support the microbial origin of hydrocarbons in samples. Bitumen and hydrocarbons in the samples show a trend that the contents are the highest in the Samples 22V-TVG10 and 26V-TVG05 collected near hydrothermal areas, and the lowest in samples 22IV-TVG01, 22V-TVG11, and 22V-TVG14 collected far from the hydrothermal areas, which suggest the possible influence on the samples by hydrothermal activity.

Key words: Hydrocarbons SouthMid-Atlantic Ridge sediment hydrothermal activity

HUANG Xin,CHEN Shuai,WANG Xiaoyuan,ZHANG Shuwen,CHEN Fajin,PU Xiaoqiang. 2018. The distribution and composition of hydrocarbons in sediments of the South Mid-Atlantic Ridge. Acta Oceanologica Sinica, (1):89－96

原文请登录海洋学报官方主页下载  http://www.hyxb.org.cn/

联系我们


联系电话:   010-62179976
详细地址:   北京海淀区大慧寺路8号海洋出版社 701室,100081
E-mail：   ocean1@hyxb.org.cn

扫描下方二维码可关注《海洋学报》微信公众号

扫描下方二维码可关注《Acta Oceanologica Sinica》微信公众号