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1、天然氣水合物GasHydrateisanice-likecrystallinesolidformedfromamixtureofwaterandnaturalgas,usuallymethane.Theyoccurintheporespacesofsediments,andmayformcements,nodesorlayers.GasHydrateisfoundinsub-oceanicsedimentsinthepolarregions(shallowwater)andincontinentalslopesediments(deepwate
2、r),wherepressureandtemperatureconditionscombinetomakeitstable.NaturalGasHydratecontainshighlyconcentratedmethane,whichisimportantbothasanenergyresourceandasafactoringlobalclimatechange.GasHydratecanbestudiedinthelaboratory,whereamachineisusedtocreatetheproperpressureandtempe
3、ratureconditionsforhydrateformation,oritcanbestudiedinsituusingseismicdatacollectedaboardshipsandgeophysicalmodels.Currently,groupsofscientistsintheU.S.,Canada,Norway,GreatBritainandJapanareworkingtotrytounderstandgashydrateandtheroleitplaysintheglobalclimateandthefutureoffu
4、els.Doeslossofgasfromgashydrateaccountforextensiveship-sinkingsinthe"BermudaTriangle“.Boetius(2005)太平洋和大西洋大西洋和西印度洋Geological,chemical,biologicalinteractionsChemical/biologicalinteractionLinAnimalsneartheventsShrimpTubewormsScaly-FootSnailClamsLin東太平洋觀日落
