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

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

doi: 10.1007/s13131-018-1160-1
  • Received Date: 2017-05-11
  • 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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