大家好,關于significance很多朋友都還不太明白,不知道是什么意思,那么今天我就來為大家分享一下關于significance的形容詞的相關知識,文章篇幅可能較長,還望大家耐心閱讀,希望本篇文章對各位有所幫助!
significance
[英][s?g?n?f?k?ns][美][s?ɡ?n?f?k?ns]
n.意義;意思;重要性;
復數:significances
例句:
1.
Todaypackagingalsohassignificanceasamarketingtool.
如今包裝做為一個營銷工具也具有非凡的意義。
2.
Theregionisalsofamousforitshistoricalandreligioussignificance.
這個地區同樣因為其歷史和地區重要性而出名
significance 常用詞匯
英[s?ɡ'n?f?k?ns] 美[s?ɡ'n?f?k?ns]
n.重要性;意義
釋義常用度分布圖
海詞統計
意義重要性
異體字:significancy
new
significance是什么意思,詞典釋義與在線翻譯:
詳盡釋義
n.(名詞)
重要(性),緊要
意義,含義,旨趣
意思
【統】顯著性
價值
功能
積極
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雙解釋義行業釋義英英釋義
significance的用法和樣例:
例句
用作名詞(n.)
Fewpeoplerealizedthesignificanceofthediscovery.
很少有人意識到這一發現的重要性.
Theyfailedtoappreciatesignificanceoftheprecautions.
他們沒有意識到這些預防措施的重要性。
6.2.1Implicationsforgraniteandadakitegeneses
Granitesplayamajorroleintheevolutionofthecontinentalcrustandinthebeneficialconcentrationofeconomicquantitiesofimportantmaterials.However,graniticrocksdisplaygreatdiversity,thesourceofwhich,eventoday,isstilloneofthemostdebatedsubjectsingranitepetrogenesis.Theconsensusviewisthatgranitesaretypicallygeneratedduringperiodsofheatand/ormasstransferfromthemantletothecrust,eitherbypartialmeltingofcrustalrocksorbyFCorAFCofmantle-derivedbasalticmagmas.Nevertheless,theevidencefordirectcontributionofmantle-derivedmagmasingraniteproductionisoftencircumstantial.Thestudiesoverthepastlastdecadehavealsoshownthatgraniticrockscouldbegeneratedbypartialmeltingofyoungsubductedoceaniccrustduringsubduction.TheArchaeantonalite-trondhjemite-granodioritemagmasarealsoproposedtobedirectlylinkedtoslab-melting,althoughthereexistssomecontroversyonthistopic.Itis,however,considerablyuncertainorargumentativewhetherthegranitescouldhavebeengenerateddirectlybypartialmeltingofthelithosphericmantle.Thiscontributiongivesacasestudythatgranitecanbederiveddirectlybypartialmeltingoflithosphericmantle.Itis,therefore,importanttounderstandthesourceandoriginofdiversegranites.
Adakitewasproposedoveradecadeagotobeproductsofthemeltingofyoungsubductedoceaniccrustrelatedtoincipientsubduction.Itsresearchhasreceivedwidespreadattentionduetoitscloserelationtoporphyrycopperdeposits,andmanyothermodelsforadakitegenerationhavebeenproposed,suchaspartialmeltingofbasalticlowercrustorofdelaminatedlowercrustandAFCprocesses.AdakiteformedbytheseprocessesusuallyshowscharacteristicsoflowMgandhighNaratherthanhighK,asdemonstratedbyexperimentalstudies.However,manyadakiticrocksespeciallyincontinentalcollisionsetting,showingsomefeaturesoftypicaladakiteinarcsettings,alsohavemuchhigherK2Ocontents.Themechani***responsibleforsuchK-enrichmentinadakiteispoorlyunderstood.ThiscontributionindicatesthatsomepotassicrocksshowingadakiticaffinitiesespeciallyincontinentalcollisionenvironmentssuchasYulongcouldhavebeenderiveddirectlybylow-degreemeltingofthephlogopite-garnetclinopyroxenitethatwasmainlyproducedbythesilicate-carbonatefluidmetasomati***inalherzoliticorharzburgiticlithosphere,whereasmostadakitesinarcsettingswasderivedbypartialmeltingoftheamphiboleeclogiteand/orgarnetamphibolitetransformedbyabasalticsourceofsubductedoceaniccrust,whichishelpfultofurtherunderstandthegenesesofadakiteanditsassociatedporphyrydeposits.
6.2.2Implicationsforgenesisofporphyrycopperdepositsincontinentcollisionalsetting
Followthetraditionalgeneticmodel,porphyrycopperdepositsareformedinislandorcontinentalarcsettings,andtherelatedore-bearingporphyriesarederivedbypartialmeltingofmantlewedge.Suchamantle-derivedmeltevolvestocalc-alkalinefelsiccompositionbysubsequentcrystalfractionationand/orcrustalcontamination.However,aseriesofstudiesinrecentyearsindicatethatincontinental-andisland-arcsettings,thenormalcalc-alkalineporphyriesonlyhost***allporphyrycopperdeposits,whereasthehostrocksofhugeporphyrycopperdepositshaveadakiticaffinity,derivedbydirectmeltingofsubductedslab.RecentstudiesalsodemonstratethatgiantporphyrycopperdepositssuchastheYulongandGangdeseporphyrycopperorebeltsintheTibetanPlateauwerealsoformedinacontinentcollisionalsetting.However,theoriginoforebearingporphyriesandthegenesisofassociatedporphyrycopperdepositsinsuchacontinentcollisionalsettingremaincontroversial.Ma(1990)andTangandLuo(1995)suggestedthatorebearingporphyriesarecalc-alkalineandmayhavebeenderivedbycrystalfractionationand/orcrustalcontaminationofmantle-derivedbasalticmagma.Houetal.(2004)arguedthatore-bearingporphyriesareadakiticrocksandmusthavebeenoriginatedfromdirectmeltingofthickenedlowercrustalrocks.Incontrast,thepresentcontribution,byaseriesofcomparisonbetweenorebearingandbarrenporphyries,confirmsthatthehostrocksareshoshoniticwithsomeadakiticaffinitiesandcouldhavebeenderiveddirectlybyprogressivelymeltingofvernsofphlogopite-garnetclinopyroxeniteinlherzoliticlithosphere.Thisworkhelpsustobetterunderstandthegenesesofore-bearingporphyriesandtheassociatedporphyrycopperdepositsincontinentcollisionalsetting.Italsoallowsustobetterdiscriminatebetweenore-formingandbarrenporphyries,whichhasimportantsignificanceforcopperexploration,especiallyintheYulongporphyrycopperore-belt.
significance
英[s?g?n?f?k?ns]
美[s?ɡ?n?f?k?ns]
n.意義;意思;重要性
名詞復數:significances
[例句]Todaypackagingalsohassignificanceasamarketingtool.
如今包裝做為一個營銷工具也具有非凡的意義。
END,本文到此結束,如果可以幫助到大家,還望關注本站哦!