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Volume 20 Issue 4
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Article Navigation >  Acta Oceanologica Sinica  > 2001  >  (4): 535-551
ZHENG Chongwei, PAN Jing, TAN Yanke, GAO Zhansheng, RUI Zhenfeng, CHEN Chaohui. The seasonal variations in the significant wave height and sea surface wind speed of the China's seas[J]. Acta Oceanologica Sinica, 2015, 34(9): 58-64. doi: 10.1007/s13131-015-0738-0
Citation: Lu Bing, Zhou Huaiyang, Wang Zipan, Lu Douding. Composition index of n-alkanes and paleoenvironmental study in sediments of the Arctic[J]. Acta Oceanologica Sinica, 2001, (4): 535-551.
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Composition index of n-alkanes and paleoenvironmental study in sediments of the Arctic

  • Key Lab of Submarine Geoscience of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

  • Received Date: 2001-06-12
  • Rev Recd Date: 2001-07-20
    Abstract
  • This paper reports different concentration patterns of n-alkanes distribution in the sediments from the Chukchi Sea, the Bering Sea in the Arctic. Factor statistical analysis method is used for studying the source of n-alkanes and paleoenviroment. The result shows that n-alkanes is in the range of nC15~nC33 and n-alkane distribution patterns are characterized by two modes. The first mode belongs to the higher molecular with MH being nC25~nC27, CPI> 1 and with remarkable odd-even dominance.They are of terrigenous plant origin. The second one belongs to lower carbon range with MH being nC17~nC20, CPI> 1 and with indistinct odd-even dominance. Therefore they are contributed by marine biological inputs. The contribution of land origin is larger than that of marine source. Pr/Ph is lower than 1 in the investigated area, which indicates the depositional environment of reducing reaction with lower oxygen. The result of factor analysis has good agreement with composition characteristics of n-alkanes in the sediment.
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