

如果您无法下载资料,请参考说明:
1、部分资料下载需要金币,请确保您的账户上有足够的金币
2、已购买过的文档,再次下载不重复扣费
3、资料包下载后请先用软件解压,在使用对应软件打开
南海东北部陆坡区浮游有孔虫壳体的原位微区MgCa分析 Title:InSituMicroscaleMgCaAnalysisofForaminiferalShellintheNortheasternSlopeoftheSouthChinaSea Abstract: Foraminiferalshellshavebeenextensivelyutilizedasgeochemicalproxiestoreconstructpastenvironmentalconditions.Inthisstudy,wefocusedonthenortheasternslopeoftheSouthChinaSea,acrucialregionforunderstandingthepaleoclimateandpaleoenvironmentalchangesinthewesternPacificOcean.TogainabetterunderstandingoftheMgCaratiovariationsinforaminiferalshells,aninnovativemicroscaleanalysistechniquewasemployed,providingvaluableinsightsintopastglobalclimatedynamicsinthisimportantregion.OurresultshighlightthepotentialofforaminiferalshellsforreconstructingpaleoenvironmentalchangesintheSouthChinaSeaandoffernewopportunitiesforpaleoclimatestudies. Introduction: ThenortheasternslopeoftheSouthChinaSea,locatedinahighlydynamictectonicsetting,isofgreatinterestforstudyingpaleoenvironmentalchangesduetoitsstrategiclocationbetweentropicalandsubtropicalclimatezones.Foraminifera,agroupofmarineprotistscharacterizedbytheircalciumcarbonateshells,arewidelyusedasindicatorsofenvironmentalchangesinmarineecosystems.TheMgCaratioinforaminiferalshellshasproventobeavaluablegeochemicalproxyforreconstructingpastvariationsinseawatertemperatureandsalinity.However,previousstudiesofforaminiferalMgCaratiosmainlyreliedonbulkmeasurements,obscuringpotentialmicroscalevariations.Inthisstudy,weaimedtodevelopaninsitumicroscaleanalysistechniqueforMgCaratioanalysisinforaminiferalshells,advancingourunderstandingofthepastenvironmentalconditionsinthisregion. Methodology: ToanalyzetheMgCaratioinforaminiferalshellsatamicroscalelevel,weutilizedacombinationoftechniquesincludinglaserablationinductivelycoupledplasmamassspectrometry(LA-ICP-MS)andscanningelectronmicroscopy(SEM).TheLA-ICP-MStechniqueallowedustodeterminetheMgCaratiowithhighprecisionandspatialresolution,whileSEMprovidedinsightsintotheshellultrastructure,aidingintheinterpretationofthegeochemicaldata.Theanalyseswereconductedonwell-preserved,fossilizedfo

快乐****蜜蜂
实名认证
内容提供者


最近下载