Weathering of Fe-bearing minerals under extraterrestrial conditions, investigated by Mössbauer spectroscopy [Elektronische Ressource] / Christian Schröder

Informations

• Publié par: johannes_gutenberg-universitat_mainz
• Publié le: 01 janvier 2007
• Nombre de lectures: 7
• Langue: English
• Poids de l'ouvrage: 7 Mo

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bWChristianeatheringderofamFysik,e-berg-Univearinggeb.MineralsacUnderhExtraterrestrialundConditions,GutenIninvhr?estigatedWiesbadenbFyhM?ssbauerereicSpPhectroscopMathematikyInformatikDissertationJohanneszurbErlangungersit?tdesMainzGradesScDoktorderderinNaturwissenschaftenonF?rBC)meine(469ElternecW(1769er-glaubtistetAlexanderwbas1859)zuBCsein,399hatAllesaufgeh?rtWethselwirkung.wvasHumzuoldtw-erden!Sokratesvmax
vmax
ExpInelotro.duction.7cosine2.Basic.Principles.11.2.1.M?ssbauer.spyectroscop.y..........3.6.aluation.......ts...y.....F...erature...dep....11.2.1.1.The.M?ssbauer.eect......w.....3.MER.of.....Non-linear.......djusting.....t..11.2.1.232Atsbasic.M?ssbauer.spofectrometerCon.....measuremen.....3.5.....cit.......data13.2.1.351M?ssbauer.parameters....2.3.4.............elo.of.t.3.1.um.y.......2714elo2.2.MIMOS.I.I......3.2.1.tting.......28.p.............T.endence.........34.tal.temp.dence........18.2.2.13.4Theondriv.e.system......resolution.........v.scales...........3.7.MER..........19.2.2.2.Sources,.collimator,.and.detectors..24.Space.eathering..................20.2.2.324WVorkingcitmoCalibrationdesthe.Fligh.Instrumen.25.Determination.maxim.v.cit.................3.2.v.cit........20.2.2.4.Other.applications..........28.A.the.routines...............3.2.2.olding.oin....21.2.3.W.eathering..............3.3.emp.dep.of.ten.................3.3.1.erimen.determination.the.erature.en-1of........22.2.3.1.Ph.ysical.w.eathering......36.CCT.ts.Mars...................44.Spatial.and.smearing..22.2.3.2.Chemical.w.eathering..46.Released.elo.y.......................49.Ev.of.M?ssbauer23.2.3.3.Biological.w.eathering........3..4.CONTENTS.4.Martian6.3.3Meteorites.53.4.1.Dar.alotGani.476.and.Sa138yh.al.Uhaclassymir.005..6.3.5.......128............54.4.2.Nakhla....Mazatzal.........w.....7.1...........sea.......Crater.................6.3....59.4.36.3.1ALH84001..................vis.class...W...117.......7.....7.1.1.....123.......tary..621304.4.Bounce.Ro.cMarsk.and.basaltic.shergottites........um.....Conclusions............62.4.4.1.Constrain.ts.on.the.p.yro.xene.comp.osition.in.Bounce.Rodirondacc.k.66.4.5.Conclusions..109.............class...........6.3.4.and.Gold.......class.h.class.....Conclusions......67.5.W.eathering.ExpApplicationserimenbiosignaturets.69.5.1.Exp.erimenlamental.design........Endoliths.............Relict.........Loihi.t...........13370.5.1.1.Reaction.kinetics..........7.3.1.............Meridiani...........139......70.5.1.2.Exp.erimen.tal.setup............................96.Discussion..........72.5.1.3.Choice.of.gases..........107.A.k.......................6.3.2.coatings....72.5.1.4.Choice.of.minerals........110.Laguna.soils.....................112.Clo.class.P74of5.2subResults.and.discussion......113.Wishstone.and.atc.to.er...........6.4................76.5.2.1.Pyrite........117.Astrobiological.121.Morphological.samples...............122.Microbial.ts..................76.5.2.27.1.2Olivine.and.p.yro.xene..................7.1.3.sedimen.structures...............7.283deep5.3mounConclusions........................7.3................................831376GusevW.eathering.on.Mars.89.6.1.Data.set..........7.3.2.Plan.......................7.4........................93.6.2.Results141.189CONTENTSCurriculum5Ro8ASummaryMarsanderConclusions198143MarsListBofExplorationPublicationsv145193BibliographVitaey157CONTENTS63+Fe
2+Fe
mosteatheringounds.-ettheironinfreeteractioniebInetonewelemeneenPlanet,roecectroscopksFandethepatmospherein-crustistherefore,anSchwertmannev-toerydamaterialsy1976;phenomenonlertwhictohtitativleacrystallographicve-besparticletracesandoftitsabundanactionsIronintthemostroandcrok[record.thanThewstudypigmenof1993,theinrelationClarkbal.et,w2004,eenpwFeatheredymaterialoutandoigneousasroti-cekandonyplanetarybbsucoThedieseinthetheelemenSolarunivSystemtheallotwstheconclusionstheonttheafterenTherevironmenantalkconditionsFonltheir1996].surfacestheinparticular,theitspastoand[e.g.,at,presenMarst.enricOneEarth,Earthwal.eatheringoulminis1977;generallyetdriv2004;enal.bM?ssbaueryisthewwtoaterearingcycle;spthevidesmediatinginformationroledistributionofamongthestatesbiospheresucisctahedralincreasingly,recognizedof[e.g.,phases,Schlesingerof,those2003].informationTheandplanetFMarsChapter(AppprimaryendixxideA)ason7theelemenotherFhand,isisofcoldmostandtdrytstothedaerse.yis.sixthHoabundanwelemeneviner,Earth'sitsandsurfacethirdrevabundanealscationicmantySifeaturesAl.attributedis,tohardlytheyactionscofcompletelyliquidfromweaterCornel[e.g.,andCarr,,Other1996]Earth,andRedthinusoanesapparencolortlyferricwxidearmertsandMorriswal.etter1989a,past.1997].ThesurfacesurfaceareofhedtheFRedrelativPlanettoma[e.g.,yetha,vTeetb,eenRhospitabledertoal.life1997,bacGelketthen,,whereas2006].itspappyearsahostileoto-erfuldaolyanalyze.e-bUnderstandingcompwhM?ssbaueryectroscop,prowhen,quanandehoabwthetheofclimateeonitsMarsxidationcandhangedsitessohdramaticallyomatroy1alsoidenhacationvFeearingreprelativercussionsdistributionforFtheamongdebatephases,onsomeclimateoncsizehangecrystalliniton.Werrousduction(istEarth.)SomepresenanswinersotharesilicatehiddenoinmineralsthehMartianolivine,roy-cks.3+Fe
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