简介：WesampledthesedimentsoftheEastChinaSeaduring2005and2006,andanalysedthecontentsofthebiogenicmatters:biogenicsilica,organiccarbon,andorganicnitrogen.Fromthesurfacedistributionwefoundthecontentsofthesesubstancestobeintherangesof0.72%-1.64%,0.043%-0.82%,and0.006%-0.11%,respectively.Theirdistributionsweresimilartoeachother,beinghighinsidetheHangzhouBayandlowoutsidethebay.Theverticalvariationsofthecontentswerealsosimilar.Inordertodiscusstherelationbetweenthemweanalysedthevariationsofcontentwithdepth.Theyincreasedinthefirst7cmandthendecreasedwithdepth.Thepeakswerefoundatdepthsbetween20to25cm.Thedistributionofcarbonateshowedanoppositetrendtothatofbiogenicmatters.Thecontentoftotalcarbonwasrelativelystablewithrespecttodepth,andtheratioofhighorganiccarbontocarbonateshowedalowburialefficiencyofcarbonate,whichmeansthatthemainburialofcarbonisorganiccarbon.Inordertodiscussthesourceoforganicmatters,theratiooforganiccarbontoorganicnitrogenwascalculated,whichwas8.01to9.65,indicatingthattheorganicmatterinthesedimentswasderivedmainlyfromphytoplanktonintheseawater.

简介：Biomarkerisanimportanttoolinthestudyofmarineorganicgeochemistry.Itsdevelopmentandapplicationmakesitpossibletoelucidatetheprocessandmechanismoftheorganicmatterintheocean.Hydrocarbonsarethemostusefulmolecularmarkers.Theyareusedastracersinmanyaspects,suchassourceindication;thedegradationoforganicmatter;diagensisprocess;environmentalpollutionandpaleooceanicstudy,etc.Theyarestudiedintheestuaries,coastalareaanddeepseatogivetheknowledgeofmarineorganicgeochemistry.Thepaperdealswiththecharacteristics,developmentandapplicationofbiomarkersaswellastheiradvantagesanddisadvantages.

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简介：Studiesoforganicinclusionsfromtheoffshoreoilandgasfieldsprovidemuchinformationaboutthenumberoftimes,temperature,depth,timeandphasestateofoil-gasmigration,aswellasaboutthecompositionoforganicinclusions.Onthebasisofthetype,character,compositionanddistributionoforganicinclusionsintheZhu-ⅢDepressionatthePearlRiverMouth,informationcanbedevelopedaboutthesourcerocksofoilandgas,andtheirevolutionandmigration.

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简介：ApreliminaryorganicgeochemicalstudyshowsthatthesulphideoresfromthehydrothermaldepositoftheOkinawaTrougharegenerallylowinthetotalorganiccarbonandextremelylowinthesolubleorganicmatter.Inthealiphatichydrocarbonfraction,then-alkanesrangefromC15toC35,withusualmaximainthemiddlen-C20regionandstrongodd-carbonnumberpredominancewhenn>C25(CPI=1.2).Thedominantanaloginthearomaticfractionisphenanthrene,apolynucleararomatichydrocarbon,whichprovidesevidenceforhydrothermalactivity.Theorganicmatterderivedmainlyfrommarineplanktonicandterrigenousvascularplantsisentrappedinahigh-temperatureregimesuchasanactivechimneyandcooledquicklyinthesulphideoresontheseafloor.Organicmatterandsulphidesaredefinitelyproductsofahigh-temperaturealteration.ThebiomarkercompoundsindicatethattheoresareformedunderlowEhandpHconditions梐reducingtoanoxicenvironment,whichisfavourableforsulphatestobereducedintosulphidesbybiogenic(bacterial)orabiogenicactivity.

简介：ThecharactersoforganicmatterinrocksandoresintheFankouandDabaoshandepositsaresystematicallystudiedwithregardtotheirimplicationsformineralization.TheresultsshowthatkerogensinthisareafaaamainlyintotheplutonismfieldinVanKrevelen'sdiagram.Reflectivityoftheorganicsubstancewasmeasuredtobe3.06%(Fankou)and1.67%(Dabaoshan),correspondingtothepaleo-geotemperaturesof232℃and184℃respectively.Thesametypesofporphyrinsandhydrocarbonswererecognizedintherocksandoresandhydrocarbon-bearinginclusionsarewidespreadinquartzandcalcite,particularlyinDabaoshan,Itisthoughtthattheorgainmattermusthaveplayedacriticalroleindiagenesisandmetallizationinthesedepositsandthatthehydrothermalsolutionwasmostlikelytobethetypeofwater-oilhotbrine.

简介：荧光刺激和可溶的有机物(WSOC)样品从20提取了的46水的平均分子的重量在东方中国玷污类型被决定。它被发现所有样品分享类似的光谱学。一种好线性关系不过在350～450nm的范围在全部的器官的碳和刺激之间存在器官的碳的内容和样品的pH在一个宽范围变化。在相对刺激紧张和WSOC和FA的平均分子的重量之间的重要关联都没被发现，但是部分关联为WSOC样品作为控制因素与pH变得重要。相对刺激紧张显示出在学习区域从南方增加到北方的一个一般趋势。pH价值可能在调整起一个重要作用荧光灯WSOC的空间变化。

简介：Factoranalysisisusedtostudytheorganiccompoundsthathavehighdegreeofcorrelationwithbiomassinalgalblooming.Basedonthiscorrelation,theyarenamedcharacteristicorganiccompounds.Thecompoundsfoundaresequalene(SQU),cedrol(CED),2,5-cyclohexadiene-1,4-dione,2,6-bis(1,1-dimthylethyl)(PBQ),phenol,2,6-bis(1,1-dimethylethy-4-methyl)(BHT),3-t-butyl-4-hydroxyanisole(BHA),1,2-benzenedicarboxylieacid,bis-(2-methylpropyl)ester(DIBP),dibutylphthalate(DNBP),respectively.Monitoringthevariationsofconcentrationofthesecharacteristicorganiccompoundsinseawatermayprovidescientificbasisforstudyingandforecastingredtides.

简介：Yangtze平台上的NeoproterozoicDoushantuo形成，华南，从碳酸盐站台与不同沉积相记录沉积继任倾斜，到深海盆，和主机，世界级的磷钙土之一扔。在这些阶层，精致地保存了石块被发现了：Weng“一个生物区系。这研究介绍被联系的碳同位素地球化学从Weng配对碳酸盐和有机物“一个碳酸盐平台的节(Yangtze站台的架，贵州省)从一条转变带的Songtaosection和Nanming节(Yangtze站台的斜坡，贵州省)并且从Yanwutan节(Yangtze站台的盆区域，湖南省)。Yangtze站台上的Environmentalvariations和简历事件在迟了的Neoproterozoic和他们的原因的关系期间被讨论。为碳酸盐和器官的碳的否定的碳同位素价值(meandelta~(13)C_(org)=-35.0每千)从最高Nantuo形成被delta~(13)的全面增加跟随C起来节。碳同位素价值每千为碳酸盐并且在-35.6之间每千每千and3.6在-9.9之间变化并且-21.5每千为器官的碳分别地。更重的delta~(13)C_(carb)价值在器官的碳埋葬建议增加，可能与增加生产率有关(例如Weng“一个生物区系)。从Doushantuo形成的沉积的delta~(13)Cvalues经由斜坡从站台减少了到盆，可能反映有次要的溶解的无机的碳的减少的环境由于更在下初级生产率。这被推出在welling过程，层化结构和热水的爆发上面古典主要是重要机制从Doushantuo形成解释沉积的碳同位素组成。

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简介：Basedontheanalysisofsideritedistribution,occurrence,chemicalcompositionk,structurealcharacteristics,carbon-oxygenisotopiccharacteristicsandrelationshipbetweensideriteandhematite,thispaperpresentsasystematicstudyofsideriteintheregionstudied.suggestingthatthesideriteintheXuanlongareageneticallyresultedfromorganicallyreducedprimaryhematiteduringthediagenesis.Theferricandferrousrelationsdirectlydependonorganiccontents.Inthepresenceoforganicmatterferrousironcanbeconvertedtoferricironthroughorganicreduction.Theaboveconclusionhasalsobeenprovedbyorganicgeochemistry.data.

简介：在2005和2006收集的表面沉积样品的Geochemical分析被用来评估在东南波兰Solina水库的沉积在场的有机物的潜在的来源。沉积变量的统计分析(碳到氮比率，和碳13和氮15同位素比率)决定了因为器官的部分关于有机物的来源显示了重要空间可变性。一个二进制混合模型从文学来源被开发预言属曾被地壳动力搬、本土的生产的相对贡献到沉积有机物。本土的生产被显示在水库的湖的部分说明体积沉积的60-75%，在水坝附近。相反，本土的生产说明了因为仅仅在收到流的河流的地区的25%沉积输入。统计分析识别了15有机物的N作为有机物的来源的最好的预言者。多重回归分析显示二个水质量变量(硝酸盐和溶解硅石)是显著地与15有机物的N签名。这导致了那湖泊的硝酸盐和溶解硅石集中在Solina水库正在调整有机物生产的一个结论。

简介：Understandingtheeffectsoforganicacids（OA）onthetransformationofFeandMntosurfacewaterfromtheweatheringcoalgangueisofgreatbene?ttoriskassessmentandremediationstrategiesforcontaminatedwaterandsoil.BasedontheinvestigationonsurfacewaterinthecentralcoaldistrictsoftheGuizhouProvince,18watersampleswerecollectedforheavymetalanalysis.TheresultsindicatedthatthepHvalueofsurfacewaterislow（3.11–4.92）,andFeconcentration(1.31–5.55mgL-1)andMnconcentration(1.90–5.71mgL-1)were,onaverage,10.86and34.33timesthelimitofSurfaceWaterQualityStandards,respectively.InordertoevaluatetheeffectsoftheOAonthedissolutionofFeandMnfromtheweatheringcoalgangue,columnelutionandbatchleachingexperimentswereconducted.Theresultsshowthatthelowmolecularweightoforganicacids（LMWOAs,i.e.,oxalic,tartaric,malicandcitricacids）andfulvicacidssigni?-cantlyacceleratedthedissolutionofFeandMn;inaddition,whentheconcentrationofOAreached25mmolL-1,theconcentrationsofFe,andMnwere1.14–67.08and1.11–2.32timesashighasthosein0.5mmolL-1OA,respectively.Furthermore,themigrationofFeandMnwassigni?cantlyin?uencedbythepHandEh,especiallyforFe;theionMnwasdissolvedfromtheganguemoreeasilythantheionFeinthecolumnleaching,whichwascontrarytotheresultsofbatchleaching.

简介：特征和土壤的潮汐的扁平的趋势有机物(SOM)周转在长江河口为Chongmingdongtan盐沼被学习基于稳定的碳同位素作文(未13C)的分析，谷物微粒缩放并且满足器官的碳(停靠港)，全部的氮(TN)和为从高潮汐的扁平的、中间的潮汐的公寓和赤裸的公寓挖掘的三个核心的无机的碳(TIC)。结果证明在土壤停靠港内容和盐沼核心的未13C价值之间的关联类似于在器官的碳(SOC)内容和未13C与不同高度多山的土壤侧面的上面的土壤层珍视的土壤之间的那些。盐沼的SOM通常比100年年轻，并且在长江的集水主要从表层土侵蚀发源。有C/N比率，满意于TIC内容的停靠港和停靠港的TN内容的关联与未13C价值满足因为核心建议从盐沼的SOM的周转度是全面的低，并且SOM周转的趋势从赤裸的公寓是清楚的到高潮汐的公寓。暴露原来的沉积的扁平的样品表演特征，与次要的SOM周转。SOM的周转过程发生了并且在高、中间的潮汐的公寓，和有有泥泞潮汐的公寓的进化的不同周转率增加的SOM分隔空间的混合的度是可辨别的。交替的泥泞薄片和淤泥的薄片的独占的阶层结构在泥泞潮汐的公寓上从动态depositional过程发源是到溶解材料，和SOM周转的垂直移植的一个大障碍然后被抑制。泥泞潮汐的扁平的过程在盐沼对SOM的隐遁和周转施加了直接影响，并且在长江河口在Chongmingdongtan盐沼的SOM周转的空间、时间的特征上有大限制。

简介：Studyonformcharacteristicsofnitrogeninmarinesedimentsistheprimarymethodtoresearchitsbiogeochemicalcyclingandnitrogenformcharacteristicsincoresedimentscanreflecttheprocessandresultsofearlydiagenesisinacertaindegree.Inthispaper,SequentialextractionprocessinnaturalgrainsizewasusedforstudyingtheexistentformsofnitrogeninfivecoresedimentsofthesouthernBohaiSeaforthefirsttime.Nitrogenwasdividedintotwoparts-transferableandfixedbasedonwhetheritcouldbeextractedbythereagent.DistributionsandearlydiagenesisoftransferablenitrogenformsinthesouthernBohaiSeawereresearchedintegratedly.ResultsindicatethatIEF-NandOSFNarepredominantformsintransferablepartinthestudiedcoresediments.Contentsofdifferentnitrogenformsvarydifferentlywithdepth,andhavedifferentdiagenesisprocess.Decompositionconstantoforganicnitrogen(ON)andOCareabout15.51×10-3a-1and4.79×10-3a-1respectively,andthedecompositioncontentofbiogenicelementsC,N,P,SihasthesequenceN＞P＞C＞Si.OC/TN(simplifiedasC/Ninthefollowing)ratioismuchlowerthanOC/ON,whichindicatesthatsedimentpreservesplentyofinorganicnitrogen(IN)and/orfixednitrogen,andthedecreaseofOC/ONratiowithdepthisduetoONreservationinsediments.Generally,transferablenitrogenaccountsformoreproportionofTNinthesurfacelayerthaninthedeeplayerofcoresediments,whereas,somestableformsofnitrogencanactivateandbecometransferableunderappropriateenvironment,whichinducestheproportionoftransferablenitrogeninTNinthedeeplayertobealmostthesameasthatinthesurfacelayer.

简介：在台湾海峡的有颜色的溶解有机物(CDOM)的吸收性质的空间、时间的可变性在夏天(到2006的8月的7月)和冬季被调查(从2006年12月到2007的1月)季节。在280nm的CDOM吸收系数(一280)从nearshore显示出一个减少的趋势到近海区域当时光谱在275295nm(S275295)显示出的波长之间计算的斜坡系数参数增加，减少的aromaticity的陈述语气和CDOM的分子的重量。一般水准280在冬季(1.47牡敳

简介：这研究处理了土壤的分发特征器官的碳(SOC)和有在六个土壤剖面的深度的稳定的碳同位素组成(delta~(13)C价值)的变化，包括在西南中国的石灰岩地区常见的地形区域的二个土类和三植被型。植物主导的种类的delta~(13)C价值，叶发出，土壤被测量使用封口试管高温度的燃烧方法。玷污石灰石土壤剖面的内容都在11.4g/kg上面的器官的碳，与在表面土壤的71.1g/kg的最高的价值。然而，内容在三黄壤侧面在2.9g/kg和46.0g/kg之间变化。C土壤有机物(SOM)珍视的最大、最小的delta~(13)之间的差别为三黄壤侧面每千每千从2.2改变到2.9。但是它为石灰石土壤剖面每千每千从0.8改变到1.6。对比研究在器官的碳的垂直模式和在黄壤和石灰石土壤之间的SOM的delta~(13)C价值显示了那在那里存在的重要差别。这差别可以反映地点特定的因素，例如土类，植被型，土壤pH，和粘粒含量，等等，哪个控制在侧面包括SOM和土壤碳周转率的不同器官的部件的内容。在SOM的稳定的碳同位素的垂直变化模式有一不同地区性，在石灰岩地区常见的地形区域的特性。

简介：Thisresearchdevelopsageneralized,one-dimensional,finitedifferencemodelforsimulatingthedistributionoftoxicsubstancesinariver-estuarinesystem.Thethreesub-modelsforunsteadyflow,sedimenttransport,andthereactionoftoxicsubstancesarealsopresentedusinganuncouplednumericalmethod.Thepaperalsoincludesexperimentalworkforsorption/desorption,fieldmeasurementsoforganiccarboncontentintheheavilypollutedKeelungRiver,andalaboratorystudyofcohesivesedimenttransportforthemodelcalibrationandverification.Inaddition,thisstudysimulatesthepolycyclicaromatichydrocarbons(PAHs)intheKeelungRiverinnorthernTaiwanasacasestudy.Encouragingresultsareobtained,andsuggestthatthemodelingapproachcouldbeextendedtosimulatethefateandtransportofsorbedpollutantsintidalriver.

简介：Themechanismandsignificanceofsecondhydrocarbon-generationfromorganicmattertrappedinfluidinclusionsincarbonaterocksarediscussed.Thetypesoforganicmatterandtherelationshipbetweenthemarealsoreviewed.Theorganicmattertrappedininclusionsandcrystals,whichaccountformorethan20%ofthetotalorganicmatterincarbonaterocks,maybeofgreatsignificanceinthegenerationofhydrocarbons.High-temperatureoilresultingfromsecondhydrocarbon-generationshouldbeanimportanttarget,inadditiontonaturalgas,inoilgasprospectinginregionsofhigh-maturitycarbonaterocks.