TY - JOUR
T1 - Component characteristics of polycyclic aromatic compounds in sediments of the South Mid-Atlantic Ridge
AU - Huang, Xin
AU - Zeng, Zhigang
AU - Chen, Shuai
AU - Yin, Xuebo
AU - Wang, Xiaoyuan
AU - Ma, Yao
AU - Yang, Baoju
AU - Rong, Kunbo
AU - Shu, Yunchao
AU - Jiang, Tao
N1 - Funding Information:
Foundation item: The National Key Basic Research Program of China under contract No. 2013CB429700; the National Special Fund for the 12th Five Year Plan of COMRA under contract Nos DY125-12-R-02, DY125-12-R-05 and DY125-11-R-05; the National Natural Science Foundation of China under contract Nos 41325021, 40830849 and 40976027; the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA11030302; the Shandong Province Natural Science Foundation of China for Distinguished Young Scholars under contract No. JQ200913.
Publisher Copyright:
© 2014, The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg.
PY - 2014/11
Y1 - 2014/11
N2 - 10 samples of sediments obtained from the South Mid-Atlantic Ridge were measured for the abundances and distributions of polycyclic aromatic compounds (PAHs). The total concentrations of PAHs (ΣPAHs) ranged from 2.768 to 9.826 μg/g dry sediment. The ΣPAHs was higher in sample 22V-TVG10 and sample 26V-TVG05 which were close to hydrothermal fields, with the lowest value in sample 22V-TVG14 which was farthest from hydrothermal fields, suggesting a probable hydrothermal origin of ΣPAHs of samples. Approximately nine kinds of PAHs were identified, and low molecular mass tricyclic and tetracyclic aromatic compounds were predominant in the samples. The concentrations of fluoranthene which were typical as hydrothermal alteration compounds were the highest among PAHs with dry weight between 0.913–3.157 μg/g. The phenanthrene homologue was most abundant in the samples, and the ratios between parent phenanthrene and methylphenanthrene which probably reflected the degree of hydrothermal alteration ranged from 0.097 to 1.602. The sample 22V-TVG10 possessing a maximum ratio value showed the intense influence of the hydrothermal alteration on this sample, which might further imply that PAHs in sediments were mainly derived from the hydrothermal alteration.
AB - 10 samples of sediments obtained from the South Mid-Atlantic Ridge were measured for the abundances and distributions of polycyclic aromatic compounds (PAHs). The total concentrations of PAHs (ΣPAHs) ranged from 2.768 to 9.826 μg/g dry sediment. The ΣPAHs was higher in sample 22V-TVG10 and sample 26V-TVG05 which were close to hydrothermal fields, with the lowest value in sample 22V-TVG14 which was farthest from hydrothermal fields, suggesting a probable hydrothermal origin of ΣPAHs of samples. Approximately nine kinds of PAHs were identified, and low molecular mass tricyclic and tetracyclic aromatic compounds were predominant in the samples. The concentrations of fluoranthene which were typical as hydrothermal alteration compounds were the highest among PAHs with dry weight between 0.913–3.157 μg/g. The phenanthrene homologue was most abundant in the samples, and the ratios between parent phenanthrene and methylphenanthrene which probably reflected the degree of hydrothermal alteration ranged from 0.097 to 1.602. The sample 22V-TVG10 possessing a maximum ratio value showed the intense influence of the hydrothermal alteration on this sample, which might further imply that PAHs in sediments were mainly derived from the hydrothermal alteration.
KW - hydrothermal activity
KW - polycyclic aromatic compounds
KW - sediment
KW - South Mid-Atlantic Ridge
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U2 - 10.1007/s13131-014-0564-9
DO - 10.1007/s13131-014-0564-9
M3 - Article
AN - SCOPUS:84919909238
SN - 0253-505X
VL - 33
SP - 150
EP - 154
JO - Acta Oceanologica Sinica
JF - Acta Oceanologica Sinica
IS - 11
ER -