简介：TherelationbetweenearthquakesandactivefaultsinShanghaianditsadjacentoffshoreregionisquantitativelyevaluatedusingGIS-basedbufferandoverlayanalysistechniques.Statisticsonthedistancefromtheepicenterofanearthquaketoitsnearestactivefaultsuggestthatmostearthquakesinthestudyareaoccurredwithin10to20kmofmajoractivefaults.Thestrikesofactivefaultshavesignificantinfluencesontheoccurrenceofearthquakes.TheNE-NNE-strikedfaultsarelessactivethanNW-NNW-orEW-strikedfaults.AlongtheNW-NNW-orEW-strikedfaults,thefrequencyofearthquakesismuchhigherthanthatalongNE-NNE-strikedfaults.Thetimeoffaultactivityhassomedegreeofinfluenceontheearthquakes.Thenewerthefaults,thehigherthefrequencyofearthquakeswithinthezoneofthefaults.

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简介：FalsecolorLandsatETM+(bands7,4,2inRGB)andSRTMimagesoftheEl-Faiyumdepression,Egypt,highlightsmajorNE-SWfaultsandotherlineamentstrendingNW-SEandN-S.AirbornemagneticdatarevealsomeE-WsubsurfacefaultswhicharenotrecognizedonLandsatETM+andSRTMimages.Ratioimages(5/7,3/1,4/3)and(5/7,5/1,4)wereusedforlithologicaldiscriminationofdifferentrocktypes.TheEl-FaiyumareaisoccupiedbysedimentaryrocksofMiddleEocene,UpperEocene,Oligocene,LowerMiocene,Pliocene,PleistoceneandHolocene.UnderstandingthestructuralregimeofEl-FaiyumdepressionintheWesternDesertofEgyptissignificantinrelationtotheneotectonicsoftheNileDeltaandtothedevelopmentofnewcommunitieswestofthedelta.TheareaiscoveredbyLateCretaceous,MiddletoLateEocenedeposits,Oligocenedeposits(comprisingfluviatilesedimentsandbasaltsheets)andPlioceneandQuaternaryalluviumandsanddeposits.Newgeologicalandstructuralmapswerepreparedatascaleof1:100000usingLandsatETM+andSRTMimagescoupledwithextensivefieldwork.ThemajorstructuraltrendsareE-W,ENE,NSandNW-thesametrendsobservedelsewhereinNorthAfricafromNWSudantoNEEgyptincludingnorthandcentralSinai.El-Faiyumdepressionisastructurally-controlledtectonicbasin,markedbynortheast-strikingfaultsalongitsnorthernmargin.ThesefaultsareparalleltosimilarfaultsoftheSyrianarcfoldbelt,whichincludesagroupofrelatedfaults,folds,push-upstructures,andbasins.QarunLakeislocatedinthenorthernpartofEl-Faiyumdepression,ataright-stepbetweentwostrandsoftheNEstrikingfaultsystem.WehavesuggestedelsewherethatEl-Faiyumdepressionisapull-apartbasinrelatedtoextensionbetweenthesemismatchedstrandsofstrike-slipfaults.TheE-WstructuresareprobablyrelatedtotherelativemotionbetweensouthEuropeandnorthEgyptandclosureoftheNeotethys.Thecontinuationofthesefaultsinthepresentareaisonlydetected

简介：高纯净的N2被用来在离子交换树脂的离子纯化期间增加活动阶段流动率。这被执行改进同位素分离和纯化的效率，并且满足快速的multiple-collector-inductively联合的血浆团spectrometry(MC-ICPMS)的效率要求分析。为Cu同位素分离，我们的结果以煤气的流动率显示了那>60mL/min，色析法的山峰拓宽了的分离和恢复率减少了到<99.2%。在另一方面，在Cu山峰的重要变化都没以20mL/min的煤气的流动率被观察，恢复率决心是>99.9%。Cu同位素比率，由标准样品的括方法测量了，同意了在内的引用数据一???牡浡?????????祳据牡潢慮整???????????????ò作？？