简介：新疆哈密东天山构造岩浆带位于尾亚-罗布庄磁力高带上的喀拉塔格磁场小区,该带发育幅值在200~300nT的正磁场区,封闭磁异常对应于石炭纪石英闪长岩或隐伏基性侵入岩体。钳子山C07-2磁异常为该区带高磁异常,最高幅值2340nT。经钻探验证,打出3层低品位含铜钛磁铁矿,总厚119m。据81个化学样分析,TFe约3.6%~28.80%,平均品位13.5%,TiO21.31%~2.33%。ZK0701-10/5层(111~113m)见有2m厚具工业品位的铜矿体和磁铁矿体,分析结果为Cu0.4%,TFe28.8%。该钻探成果为在哈密玉西地区寻找岩浆型钛磁铁矿提供了有力依据。

简介：ThedensitiesofCO_2inclusionsinmineralsarecommonlyusedtodeterminethecrystallizingconditionsofthehostminerals.However,conventionalmicrothermometryisdifficulttoapplyforinclusionsofsmallsize(<5-10μm)orlowdensity.RamananalysisisanalternativemethodfordeterminingCO_2density,providedthattheCO_2density-Ramanshiftrelationisknown.ThisstudyaimstoestablishthisCO_2density-RamanshiftrelationbyusingCO_2inclusionssynthesizedinfusedsilicacapillaries.Byusingthisnewly-developedsynthetictechnique,weformedpureCO_2inclusions,andtheirdensitiesweredeterminedbymicrothermometry.TheRamananalysisshowedthattherelationbetweenCO_2density(Ding/cm3)andtheseparations(△incm~(-1))betweenthetwomainbands(i.e.Fermidiadbands)inCO_2Ramanspectracanberepresentedbyacubicequation:D(g/cm~3)=0.74203(-0.019⊿~3+5.90332⊿~2-610.79472⊿+21050.30165)-3.54278(r~2=0.99920).OurcalculatedDvalueforagiven⊿isbetweenthoseobtainedfromtwopreviously-reportedequations,whichwerederivedfromdifferentexperimentalmethods.AnexamplewasgiveninthisstudytodemonstratethatthedensitiesofnaturalCO_2inclusionsthatcouldnotbederivedfrommicrothermometrycouldbedeterminedbyusingourmethod.

简介：AsshaleexploitationisstillinitsinfancyoutsideNorthAmericamuchresearcheffortisbeingchannelledintovariousaspectsofgeochemicalcharacterizationofshalestoidentifythemostprospectivebasins,formationsandmaptheirpetroleumgenerationcapabilitiesacrosslocal,regionalandbasin-widescales.Themeasurementoftotalorganiccarbon,distinguishingandcategorizingthekerogentypesintermsoil-proneversusgas-prone,andusingvitrinitereflectanceandRock-Evaldatatoestimatethermalmaturityarestandardpracticeintheindustryandappliedtosamplesfrommostwellboresdrilled.Itisthetrendsofstableisotopesratios,particularlythoseofcarbon,thewetnessratio(C1/∑(C2+C3)),andcertainchemicalbiomarkersthathaveprovedtobemostinformativeaboutthestatusofshalesasapetroleumsystem.Thesedatamakeitpossibletoidentifyproduction'sweet-spots',discriminateoil-,gas-liquid-andgas-proneshalesfromkerogencompositionsandthermalmaturities.Rolloversandreversalsofethaneandpropanecarbonisotoperatiosareparticularlyindicativeofhighthermalmaturityexposureofanorganic-richshale.Comparisonsofhopane,streraneandterpanebiomarkerswithvitrinitereflectance(Ro)measurementsofthermalmaturityhighlightdiscrepanciessuggestingthatRoisnotalwaysareliableindicatorofthermalmaturity.Majorandtraceelementinorganicgeochemistrydataandratiosprovidesusefulinformationregardingprovenance,paleoenvironments,andstratigraphic-layerdiscrimination.Thisreviewconsidersthedatameasurement,analysisandinterpretationoftechniquesassociatedwithkerogentyping,thermalmaturity,stableandnon-stableisotopicratiosforrocksandgasesderivedfromthem,productionsweet-spotidentification,geochemicalbiomarkersandinorganicchemicalindicators.Italsohighlightsuncertaintiesanddiscrepanciesobservedintheirpracticalapplication,andthenumerousoutstandingquestionsassociatedwiththem.

简介：暴露得好的Lijiatuo节被选择探索州的、主要生产率和海水硫酸盐在寒武纪的系列1-2期间铺平的海洋的氧化还原作用的时间的进化和控制，华南。这节由Xiaoyanxi形成(Fm)mudstones和LiuchapoFm组成。在斜坡和盆环境扔了的燧石。五个oxic缺氧的周期基于V/Sc，Th/U和瞬间，U，V，Ni和Cu的丰富因素被识别。中间上面的LiuchapoFm。并且中间的XiaoyanxiFm。在oxic-suboxic条件下面被扔，并且阶层的其余部分在缺氧的条件下面。Re/Mo比率证明oxic-suboxic在中间的XiaoyanxiFm调节。被短暂sulfidic条件伴随，并且节的其余部分是underanoxic和non-sulfidic条件。所有TOC和Ba，Ni，Cu，Zn和Cd的丰富因素表明了那在LiuchapoFm下沉和有机物(OM)的埋葬流动。在overlyingXiaoyanxiFm是比那低的。在XiaoyanxiFm的最高的下沉和OM的埋葬流动。出现在它的更低的部分；然而，在XiaoyanxiFm的最低下沉和OM的埋葬流动。出现在它的中间的部分。TOC/TS，TS和34间谍证明海水被低海洋的硫酸盐层次统治，它当免费H2S。大气的氧内容的上升可以是为联系、短暂suboxic-oxic并且将近的主要司机在中间的XiaoyanxiFm的sulfidic环境。

简介：潘—煤矿小断层较为发育，尤其是P2ss^1第三含煤组主采煤层(11—2煤)。采用构造地质学的分析方法，对井田内P2ss^1第三含煤组主采煤层中断层的特征、发育规律及形成机制的研究分析，根据已采区小断层分布规律以及井田构造应力场进行了研究，对未采区构造分布作出预测。

简介：本文首先简述了苏北褶皱构造区的地质概况、地热地质条件,确定该区域系统属于中-低温对流型地热系统。基于井温测量、热导率测试数据,综合以往研究成果建立了数学模型,利用Tough2软件分别对洪泽复式背斜、黄滕沟背斜及圩中背斜3条剖面进行了地温场模拟,并分析了其影响因素。结果表明：深部热储的预测温度在73℃-120℃,往深部钻进有望获得温度更高的地热水。较薄的地壳厚度和较浅的居里等温面埋深构成了研究区地温偏高的深部地质背景,构造断裂带及其交汇带的热水深部循环也是造成该中-低温对流型地热系统局部热异常的主控因素之一。