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

HUANG Xin,  CHEN Shuai,  WANG Xiaoyuan,  ZHANG Shuwen,  CHEN Fajin,  PU Xiaoqiang

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文章导航 > Acta Oceanologica Sinica  > 2018 >  37(1): 89-96
黄鑫, 陈帅, 王晓媛, 张书文, 陈法锦, 蒲晓强. 南大西洋洋中脊附近沉积物中烃类分布和组成研究[J]. 海洋学报英文版, 2018, 37(1): 89-96. doi: 10.1007/s13131-018-1160-1
引用本文: 黄鑫, 陈帅, 王晓媛, 张书文, 陈法锦, 蒲晓强. 南大西洋洋中脊附近沉积物中烃类分布和组成研究[J]. 海洋学报英文版, 2018, 37(1): 89-96. doi: 10.1007/s13131-018-1160-1
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HUANG Xin, CHEN Shuai, WANG Xiaoyuan, ZHANG Shuwen, CHEN Fajin, PU Xiaoqiang. The distribution and composition of hydrocarbons in sediments of the South Mid-Atlantic Ridge[J]. Acta Oceanologica Sinica, 2018, 37(1): 89-96. doi: 10.1007/s13131-018-1160-1
Citation: HUANG Xin, CHEN Shuai, WANG Xiaoyuan, ZHANG Shuwen, CHEN Fajin, PU Xiaoqiang. The distribution and composition of hydrocarbons in sediments of the South Mid-Atlantic Ridge[J]. Acta Oceanologica Sinica, 2018, 37(1): 89-96. doi: 10.1007/s13131-018-1160-1
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南大西洋洋中脊附近沉积物中烃类分布和组成研究

doi: 10.1007/s13131-018-1160-1
  • 1.

    广东海洋大学, 广东省近海海洋变化与灾害预警重点实验室, 湛江, 524088

  • 2.

    中国科学院海洋地质与环境重点实验室(中国科学院海洋研究所), 青岛, 266071;青岛海洋科学与技术国家实验室, 海洋矿产资源实验室, 青岛, 266071

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

  • 1.

    Guangdong Province Key Laboratory of Coastal Ocean Variation and Disaster Prediction, Guangdong Ocean University, Zhanjiang 524088, China

  • 2.

    Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China

    摘要
  • 摘要: 我们利用气相色谱-质谱联用仪(GC-MS)测试了南大西洋洋中脊附近采集的沉积物样品中烃类的分布和组成。通过分析发现，样品中烃类表现出明显的双峰分布，同时明显的富集3-甲基烷烃、8-甲基烷烃以及2,4,(n-1)-三甲基烷烃，这可能是海底微生物代谢作用的结果。样品中也富集萜烷、藿烷和甾烷等生物标志物，这也支持样品中烃类主要为微生物来源的观点。样品中沥青和烃类显示出距离热液区近的2V-TVG10和26V-TVG05站位含量高，而距离热液区远的22IV-TVG01、22V-TVG11和22V-TVG14站位含量低的趋势，暗示出样品中沥青以及烃类的分布和组成可能受到海底热液活动的影响。
    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.
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  • 收稿日期:  2017-05-11

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