MARINE GAS HYDRATE RELATED TO VOLCANO-HYDROTHERMALISM
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摘要: 天然气水合物中烃类主要有生物成因和热解成因,然而随着水合物勘探开发的不断深入,分布于洋底、洋陆过渡带或拉张裂谷区与火山-热液作用有关的天然气水合物的发现则表明,海洋天然气水合物很可能存在第三种类型:无机成因天然气水合物。实验模拟表明,洋底岩石蛇纹石化可生成无机成因的天然气水合物,实际中我们在缺少沉积物的洋底和沉积物有机碳含量低(<0.5%~1.0%)的大陆边缘发现了与火山-热液有关的天然气水合物。因此,今后天然气水合物勘探开发中应特别重视寻找与火山-热液有关的天然气水合物。Abstract: Hydrocarbonin gas hydrate mainlyincludes biogenic and thermogenic gases.However,within-creasing understandings of gas hydrate,newevidences are coming to light that there exists inorganic gashydrate related with volcano-hydrothermalism,whichis discoveredin ocean floor,subduction zone or ex-tensional valley.Fieldinvestigations and laboratory si mulation have manifested that,seabed serpentiniza-tion could generate inorganic gases.In fact,we have found gas hydrate related with volcano-hydrother-malism whose sedi ments have thin thickness and low organic carbon quantity.Therefore,inorganic gashydrae deposits should be paid attention toin the future.
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Key words:
- serpentinization /
- volcano-hydrothermalism /
- inorganic compound gas hydrate /
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[1] 石森,白冶.气体水合物的基本特征、形成条件及成因初探[J].矿物岩石,1999,19(3):100~104 [2] 张景廉,于均民,崔永强等.天然气水合物成因探讨及中国海域勘探前景[J].海洋石油,2003,23(1):51~56 [3] 卢振权,吴必豪,祝有海.南海潜在天然气水合物藏的成因及形成模式初探[J].矿床地质,2002,21(3):232~239 [4] 狄永军,郭正府,李凯明等.天然气水合物成因探讨[J].地球科学进展,2003,18(1):139~143 [5] 赵洪伟,龚建明,陈建文等.冲绳海槽天然气水合物综合异常特征及成藏地质条件分析[J].海洋地质与第四纪地质,2004,24(1):93~98 [6] 龚建明,陈建文,李刚等.Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough:an example[J]. Acta Oceanologica Sinica, 2003,22(4):569~576 [7] Ginsburg G D, Soloviev V A. Submarine gas hydrates[M]. St Petersburg: VNIIOkeangeologia:1998. 19~57 [8] 龚建明,张莉,陈建文等.ODP204航次天然气水合物的可能有利储层——浊积层[J].现代地质,2005,19(1):21~25 [9] ДмитриевскийАН,БаланюкИ E.洋壳蛇纹岩——生烃源[J].任俞译.新疆石油地质,2003,24(3):268~271 [10] 周祖翼,廖宗廷,金性春等.冲绳海槽——弧后背景下大陆张裂的最高阶段[J].海洋地质与第四纪地质,2001,21(1):52~55 [11] 曹洁冰,周祖翼.被动大陆边缘:从大陆张裂到海底扩张[J].地球科学进展,2003,18(5):731~736 [12] Horita J,Berndt M E.A biogenic methane formation and isotopicfractionation under hydrothermal conditions[J].Science,1999,285:1055~1057 [13] 胡桂兴,欧阳自远,王先彬等.原始太阳星云条件下费托反应中的碳同位素分馏[J].中国科学(D辑),1997,27(4):395~400 [14] 翟世奎,陈丽蓉,张海启.冲绳海槽的岩浆作用与海底热液活动[M].北京:海洋出版社,2001.146~153,161~164 [15] Sakai H,Gamo T,Kim E S,et al.Venting of carbon dioxiderich fluid and hydrate formation in mid-Okinawa Trough backarc basin[J].Science,1990,248:1093~1096 [16] 侯增谦,张绮玲.冲绳海槽现代活动热水区CO2-烃类流体:流体包裹体证据[J].中国科学(D辑),1998,28(2):142~148 [17] Summerhayes C P, Gilbert D. Distribution, origin and hydrocarbon potential of organic matter in sediments from the Pacific margin of Southern Mexico[A]. In:Watkins J S, Moor J C,Bachman S B, et al, eds. Initial Reports, Deep Sea Drilling Project 66[C]. Washington D C:Government Printing Office,1982. 541~547 [18] Shipley T H, Didyk B M. Occurrence of methane hydrates offshore southern Mexico[A]. In: Watkins J S, Moor J C, Bachman S B, et al, eds. Initial Reports, Deep Sea Drilling Project 66[C]. Washingtons D C: Government Printing Office, 1982.547~555 [19] Hall A. Igneous Petrology[M]. London:Longman Group Limited, 1996
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