简介：RamanpeaksofvarioushydratesintheH2O-NaCl-CaCl2systemhavebeenpreviouslyidentified,butaquantitativerelationshipbetweentheRamanpeaksandXNaCl(i.e.,NaCl/(NaCl+CaCl2))hasnotbeenestablished,mainlyduetothedifficultytofreezethesolutions.Thisproblemwassolvedbyaddingaluminapowdertothesolutionstofacilitatenucleationofcrystals.Cryogenic(-185oC)Ramanspectroscopicstudiesofalumina-spicedsolutionsindicatethatXNaClislinearlycorrelatedwiththetotalpeakareafractionofhydrohalite.Capsulesofsolutionsmadefromsilicacapillarywerepreparedtosimulatefluidinclusions.Mostoftheseartificialfluidinclusionscouldnotbetotallyfrozenevenattemperaturesaslowas-185oC,andthetotalpeakareafractionofhydrohaliteisnotcorrelatedlinearlywithXNaCl.However,thedegreeofdeviation(?XNaCl)fromthelinearcorrelationestablishedearlierisrelatedtotheamountofresidualsolution,whichisreflectedbytheratio(r)ofthebaseline"bump"area,resultingfromtheinterstitialunfrozenbrinenear3435cm-1,andthetotalhydratepeakareabetween3350and3600cm-1.Alinearcorrelationbetween?XNaClandrisestablishedtoestimateXNaClfromcryogenicRamanspectroscopicanalysisforfluidinclusions.

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简介：Naturalgascontaininghydrogensulphide(H2S)hasbeenfoundinseveralpetroliferousbasinsinChina,suchastheSichuanBasin,BohaiBayBasin,OrdosBasin,TarimBasin,etc.NaturalgaswithhigherH2Scontents(H2S＞5%mol.)ismostlydistributedinboththegasreservoirsofDukouhe,Luojiazhai,PuguangandTieshanpo,whichbelongtotheTriassicFeixianguanFormationinthenortheasternSichuanBasinandthoseoftheKongdian-ShahejieformationsinthenortheasternJinxianSagoftheJizhongDepression,BohaiBayBasin.IntheSichuanBasin,theH2Scontentsofnaturalgasaverageover9%andsomecanbe17%,whilethoseoftheBohaiBayBasinrangefrom40%to92%,beingthenoneofthegasreservoirswiththehighestH2Scontentsintheworld.Basedondetailedobservationandsampleanalysisresultsofatotal5000mofcorefromover70wellsintheabove-mentionedtwobasins,especiallysulfurisotopicanalysisofgypsum,brimstone,pyriteandnaturalgas,alsowithintegratedstudyofthegeochemicalcharacteristicsofhydrocarbons,itisthoughtthatthenaturalgaswithhighH2Scontentsresultedfromthermochemicalsulfatereduction(TSR)reactions.Amongthem,thenaturalgasintheFeixianguanFormationresultedfromTSRreactionsparticipatedbyhydrocarbongas,whilethatintheZhaolanzhuangoftheJinxianSagbeingtheproductofTSRparticipatedbycrudeoil.DuringtheconsumptionprocessofhydrocarbonsduetoTSR,theheavyhydrocarbonswereapttoreactwithsulfate,whichaccordinglyresultedinthedrycoefficientofnaturalgasincreasingandthecarbonisotopesbecomingheavier.

简介：<正>1IntroductionTheundergroundbrineresourcesdistributingwidelyinSichuanBasin,Chinahavedrawnworldwideattentionduetotheirunusualelementabundanceandexcellentquality.

简介：本文以聊城市为例,在＂数字聊城地理空间构架建设与应用示范项目＂的支持下,详细介绍了正射影像图的制作过程及注意事项,为今后航测正射影像的生产制作提供了方法与依据。随着航空摄影技术的发展与普及,大比例尺正射影像图以其丰富的内容,清晰直观的效果一步步丰富传统地形图;以正射影像为底图的航测线划调查图大大提高了外业调绘的效率及野外补测的精度。

简介：通过结合安徽省宿州市现行的坐标系统和测绘成果的现状，论述了2000国家坐标系建立和转换的必要性和紧迫性。利用平面四参数和三维七参数转换方法，采用三种不同的选点方案，对转换精度进行了对比分析，实现了宿州市现有测绘成果坐标转换为2000国家坐标系的目标，对后续项目实施有一定参考意义。

简介：OurfieldworkandgeochronologicstudiesinnorthernHebeiandwesternLiaoningareasindicatethatthemajorMesozoiccontractionaleventsintheYanshanbeltareof(1)pre-MiddleJurassic(Indosinian?),(2)LateJurassicand(3)EarlyCretaceousage.ThefirstN-SshorteningcouldbeaconsequenceofthecollisionoftheMongolianarcsalongtheSolonsutureagainsttheNorthChinaplate.Siberian-NorthChinaplatecolli-

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简介：The10thCoalGeologyConference,jointlyorganizedbytheFacultyofScienceoftheCharlesUniversityinPrague,theCzechGeologicalSurveyandtheInstituteofGeologyoftheAcademyofSciencesoftheCzechRepublic,tookplaceinJune7-11,2004,attheFacultyofScience.Thecoalgeologyconferenceshavebeenheldatthefacultyeverythreeorfouryearssince1972.Theywereprecededbycoalgeologyseminarswhichbeganevenearlier,inJanuary1968.Theseseminarsandconferencesprovidedanexcellentopportunitytoexchangeknowledgeandnewinformationoncoalgeologyandrelatedfieldsand,aboveall,tobringtogetherpeoplefromvariousfieldsstartingwithscienceandendingupwithawidespectrumofinterests.

简介：为加速中亚地区基础地质信息数据的共享与交流，全面对比中国西部（重点为新疆地区）与邻区大型金属矿床的成矿地质背景，加速查明新疆矿产资源的分布状况，为中亚地质工作者提供相关地质信息，建立中亚地区1：20万地质图数据库十分必要．

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简介：近10年来，我国城市地质工作取得明显进展。未来10~15年我国城市发展将具有明显的“VUCA”特点，城市化过程中所带来的问题也日益凸显，尤其是“大城市病”更加突出。本文从城市地质安全风险角度，科学诊断大城市病“病因”，提出了“大城市病”的有效防治方案。指出未来10~15年，城市地质工作必须贯彻落实五大发展理念，持续创新发展，实施“两快、三高”战略，加大“大城市病”防治力度，有力支撑城市建设和经济社会协调发展。

简介：M7.0Lushan地震触发了的s山崩的一个巨大的数字。印射的山崩危险性是很重要的。证据(悲痛)和逻辑回归(LR)的重量方法广泛地为LSM(印射的山崩危险性)被使用了。然而，限制仍然存在。悲痛能够估计每个因素的不同的班的影响，但是忽视在因素之间的关联。当它不能够评估不同的班的影响时，LR能在因素之中分析关系。这份报纸为LSM建议LR和悲痛的一个联合方法，利用他们的单个优点并且克服他们的限制。1289山崩的库存被使用：70%为为确认训练并且留下是选择随机的。11个山崩条件因素在模型被采用，结果用操作特征(巨鸟)曲线的接收装置被验证。结果证明LR悲痛模型比LR模型有更好的精确性，生产在有0.802成功的价值的曲线下面的一个区域并且0.791预兆，比LR模型的高(0.715成功并且0.722预兆)。悲痛和LR的联合方法能为印射的导致地震的山崩危险性提供精确性的有希望的水平，这因此被结束。

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