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Article Navigation >  Acta Sedimentologica Sinica  > 2005  >  23(1): 170-174

LIN Wei-dong, SHEN Ping, XU Yong-chang, ZHOU Yong-zhang. Geochemical Characteristics and Source ofHydrocarbon Gases ofRecent Sedmi ent from South China Sea[J]. Acta Sedimentologica Sinica, 2005, 23(1): 170-174.
Citation: LIN Wei-dong, SHEN Ping, XU Yong-chang, ZHOU Yong-zhang. Geochemical Characteristics and Source ofHydrocarbon Gases ofRecent Sedmi ent from South China Sea[J]. Acta Sedimentologica Sinica, 2005, 23(1): 170-174.
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Geochemical Characteristics and Source ofHydrocarbon Gases ofRecent Sedmi ent from South China Sea

  • 1.

    Center for Earth Environment and Resources, Sun Yat-Sen University, Guangzhou 510725;

  • 2.

    Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000

  • Received Date: 2004-03-10
  • Rev Recd Date: 2004-06-26
  • Publish Date: 2005-03-10
  • 37 samples of hydrocarbon gases in the recent sediment from South China Sea were analyzed for their geochemical composition and 14 samples were analyzed for isotop ic composition of Methane. The re lative average content of methane in the northern continental slope, sou thern con tinental slope and deep-seapla in is 95%, 91% and 94%,respective ly. The content o f heavy hydrocarbon gas is between 0 to 20%, ave rage 9%. The iso topic composition of me thane in con tinental slope area ranged form 30 to 40 and 24 to 36 in deep-sea plain area. Those data show that hydrocarbon gases in the recent sediment from continental slope area maybe come from thermal genetic gases and those from deep sea plain areamay have two resourcesw hich either might be originated from b iogenetic gases or from nonbiogenetic gases via fault.
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Publishing history
  • Received:  2004-03-10
  • Revised:  2004-06-26
  • Published:  2005-03-10

Geochemical Characteristics and Source ofHydrocarbon Gases ofRecent Sedmi ent from South China Sea

  • 1. Center for Earth Environment and Resources, Sun Yat-Sen University, Guangzhou 510725;
  • 2. Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000
  • Received Date: 2004-03-10
  • Rev Recd Date: 2004-06-26
  • Publish Date: 2005-03-10

Abstract: 37 samples of hydrocarbon gases in the recent sediment from South China Sea were analyzed for their geochemical composition and 14 samples were analyzed for isotop ic composition of Methane. The re lative average content of methane in the northern continental slope, sou thern con tinental slope and deep-seapla in is 95%, 91% and 94%,respective ly. The content o f heavy hydrocarbon gas is between 0 to 20%, ave rage 9%. The iso topic composition of me thane in con tinental slope area ranged form 30 to 40 and 24 to 36 in deep-sea plain area. Those data show that hydrocarbon gases in the recent sediment from continental slope area maybe come from thermal genetic gases and those from deep sea plain areamay have two resourcesw hich either might be originated from b iogenetic gases or from nonbiogenetic gases via fault.

LIN Wei-dong, SHEN Ping, XU Yong-chang, ZHOU Yong-zhang. Geochemical Characteristics and Source ofHydrocarbon Gases ofRecent Sedmi ent from South China Sea[J]. Acta Sedimentologica Sinica, 2005, 23(1): 170-174.
Citation: LIN Wei-dong, SHEN Ping, XU Yong-chang, ZHOU Yong-zhang. Geochemical Characteristics and Source ofHydrocarbon Gases ofRecent Sedmi ent from South China Sea[J]. Acta Sedimentologica Sinica, 2005, 23(1): 170-174.
shu

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