Organic Composition of Sulphide Ores in the Okinawa Trough and Its Implications-中国期刊网

摘要 ApreliminaryorganicgeochemicalstudyshowsthatthesulphideoresfromthehydrothermaldepositoftheOkinawaTrougharegenerallylowinthetotalorganiccarbonandextremelylowinthesolubleorganicmatter.Inthealiphatichydrocarbonfraction,then-alkanesrangefromC15toC35,withusualmaximainthemiddlen-C20regionandstrongodd-carbonnumberpredominancewhenn>C25(CPI=1.2).Thedominantanaloginthearomaticfractionisphenanthrene,apolynucleararomatichydrocarbon,whichprovidesevidenceforhydrothermalactivity.Theorganicmatterderivedmainlyfrommarineplanktonicandterrigenousvascularplantsisentrappedinahigh-temperatureregimesuchasanactivechimneyandcooledquicklyinthesulphideoresontheseafloor.Organicmatterandsulphidesaredefinitelyproductsofahigh-temperaturealteration.ThebiomarkercompoundsindicatethattheoresareformedunderlowEhandpHconditions梐reducingtoanoxicenvironment,whichisfavourableforsulphatestobereducedintosulphidesbybiogenic(bacterial)orabiogenicactivity.

1Lan Dongzhao Fang Qi Liao Lianzhao. Surficial Sedimentary Diatoms in Okinawa Trough and Its Response to Kuroshio Current.海洋科学,2002-02.
2KANG Xuming;SONG Jinming;YUAN Huamao;LI Xuegang;LI Ning;DUAN Liqin. The sources and composition of organic matter in sediments of the Jiaozhou Bay：implications for environmental changes on a centennial time scale.海洋科学,2017-11.
3GUO Kun;ZHAI Shikui;YU Zenghui;ZENG Zhigang;WANG Xiaoyuan;YIN Xuebo. Geochemical characteristics of major and trace elements in the Okinawa Trough basaltic glass.海洋科学,2018-02.
4沈忠民;周光甲;等. Supercritical Carbon Dioxide Extraction of Organic Matter from Petroleum Source Rocks and Its Implications.地球化学,1996-04.
5ZHAO Yuexia;LIU Baohua;LI Xishuang;LIU Chenguang;WU Jinlong;WANG Kuiyang. Submarine canyons on the north of Chiwei Island： influenced by recent extension of the southern Okinawa Trough.海洋科学,2008-04.
6杨永亮;日下部正志;山本惠幸. Behaviors of 210Pb and 210Po around hydrothermal vents in the Okinawa Trough.海洋科学,2002-01.
7YAN Quanshu;SHI Xuefa. Petrologic perspectives on tectonic evolution of a nascent basin （Okinawa Trough） behind Ryukyu Arc：A review.海洋科学,2014-04.
8LIUYanguang;MENGXianwei;FUYunxia. REE and Sr-Nd isotope characteristics of hydrothermal chimney at Jade area in the Okinawa Trough.海洋科学,2004-02.
9Ramgopal Agarwala. Rise of China and its Implications for India.外交学,2014-03.
10. Europe’s "Division" and Its Implications.国际关系,2003-04.

Organic Composition of Sulphide Ores in the Okinawa Trough and Its Implications

来源期刊

相关推荐

同分类资源更多

相关关键词

Organic Composition of Sulphide Ores in the Okinawa Trough and Its Implications

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多