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主元素
    CHARACTERISTICS OF MAJOR ELEMENTS OFSEDIMENTS IN CORE 97-37 FROM SOUTHERNSOUTH CHINA SEA AND ITS POTENTIALIMPLICATIONS TO PALEOENVIRONMENT
    南海97-37柱样的主元素特征及其潜在的古环境指示作用
    MAJOR ELEMENTS AND ISOTOPIC GEOCHEMISTRY OF CENOZOIC HIGH-POTASSIC VOLCANIC ROCKS IN MANGKANG BASIN, TIBET
    西藏芒康盆地新生代高钾火山岩的主元素和同位素地球化学研究
    Supergenic geochemical characteristics of major elements in red soils in South China
    华南红土主元素表生地球化学特征
    The distribution of the abundances of major elements in Late Mesozoic shows a typical bimodal pattern. With the evolution of the volcanic rocks,the amount of SiO 2 decreased gradually,whereas the content of Fe 2O 3,FeO,CaO,MgO,TiO 2,P 2O 5 and MnO increases step by step.
    晚中生代火山岩岩石的主量元素丰度呈双峰分布 ,从老到新 ,火山岩主元素中SiO2 减少 ,Fe2 O3、FeO、CaO、MgO、TiO2 、P2 O5、MnO有所增加。
    The eclogite gravels,which are found in Mesozoic Fenghuangtai and Maota nchang Formations in the north margin of the Dabie Orogenic Be lt,are rich in K 2 O(1.21%),∑REE(278μg /g),LILE(such as Rb,Ba,K and Th),and(La /Yb ) N ratio(14.4),on the basis of the analysis of major elements,rare earth elements(REE)and trace elements.
    大别造山带北缘中生代地层凤凰台组和毛坦厂组中榴辉岩砾石的主元素、稀土元素以及微量元素具有如下特征,主元素中K2O富集(1.21%),高∑REE(278μg/g),高(La/Yb)N(14.4)和大离子亲石元素(LILE,如Rb、Ba、K和Th等)富集。
    The difference of element sources and hydrodynamic conditions are the main reasons causing this distribution of major elements.
    物质来源的差异、水动力环境的不同是造成主元素平面分布方式的主要原因. 与重金属相比,大部分主元素在珠江口的垂直分布形式较简单.
    A NEW QUANTITATIVE METHOD FOR ANALYSIS OF MAJOR ELEMENTS IN MAGMATIC ROCKS——THE VECTOR ANALYSIS OF PEARCE'S ELEMENT RATIO
    岩浆岩主元素定量研究的一种新方法:皮尔斯元素比值的矢量分析
    COMPARISON AND SIGNIFICANCE FOR MAJOR ELEMENTS OF LAMPROPHYRES IN LAOWANGZHAI GOLD DEPOSIT AREA,YUNNAN PROVINCE
    云南老王寨金矿区煌斑岩主元素对比及其意义
    Tectonic setting and petrogenesis of Qingshan Formation volcanic rocks in western Shangdong Province: Evidence from major elements and trace elements
    鲁西青山组火山岩形成的构造背景及其成因探讨:主元素和微量元素证据
    Abstract: Based on the theory of Metallogenic System, the study on the major elements, transition metal elements and rare earth elements was carried out on the Co-rich Mn crusts from western Pacific, including Magellan seamount cluster and Marcus-Wake seamount cluster, and the ore-forming background and ore-controlling factors were analyzed synthetically.
    本文以成矿系统理论为指导,以西太平洋富钴结壳成矿带(包括麦哲伦海山群和马尔库斯-威克海山群)富钴结壳为研究对象,通过对其主元素、过渡族金属元素和稀土元素的系统研究,结合富钴结壳成矿背景、成矿作用过程和控矿要素分析,初步建立了西太平洋富钴结壳成矿系统结构和概念模型。
    Secondly, based on the microbeam analytical technique, on the one hand, through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle;
    其次,为了获取幔源矿物中的地幔信息,对挑选出来的幔源矿物进行了主元素研究;
    The characteristics of major elements,REE and trace elements in- dicate that the volcanic rocks belong to a suit of calc-alkalic volcanic rock series and the environment of their formation has characteristics similar to those of island arc-continental margin.
    火山岩的主元素稀土元素和微量元素特征表明,它们属一套亚碱性系列的火山岩系,反映其生成环境类似于岛弧—大陆边缘的特征。
    The petrological, petrochemical, mineralchemical, and geochemical study of the garnet lher-zolite xenolith newly discoveried in kimberlite pipe in Dahongshan area, Hubei Province illustrates that the upper mantle of the Dahongshan area in Palaeozoic is the metasomatic mantle whose major elements have been weakly depleted.
    本文通过对湖北大洪山地区金伯利岩管中新发现的石榴石二辉橄榄岩包体岩石学、岩石化学、矿物化学、地球化学的研究表明,古生代时大洪山地区的上地幔是交代地幔,主元素有十分微弱的亏损;
    Abstract This paper comparatively studied major elements of fresh,altered, mineralized lampro-phyres in Laowangzhai gold deposits area,Yunnan Province,preliminarily discussed themigrating law of major elements in lamprophyres during alteration and mineralization in thisarea,and advanced the way of distinguishing three types of lamprophyres,The results of ma-jor elements comparison have significane for discussing further the genetic relationship oflamprophyes and gold mineralization.
    通过对云南老王寨金矿区新鲜、蚀变、矿比煌斑岩主元素对比,初步讨论了该区煌斑岩在蚀变、矿化过程中主元素的迁移规律,提出了三种煌斑岩主元素的判别方法; 主元素对比结果对探讨煌斑岩与金矿化的成因关系有重要意义。
    The contents of major elements and rare-earth elements for both members of basalt are calculated from these parameters.
    利用这些参数,求出了两个端元玄武岩的主元素和稀土元素含量;
    Based on the results of correlation coefficient matrix analysis and correspondence anal- ysis of major elements, combined with the macroscopic and microscopic structure features of the cobalt-rich ferromanganese crusts we concluded that the main oceanics factors for metallogenic of the older growth generation crust layer are the oxidation environments on the slope of seamounts as Antarctic glaciation expanded, Antarctic bottom water current and Pacific circulation action intesified, and an expensation of the oxygen minimum zone which caused by high surface water bioproductivity on equatorial Pacific ocean.
    (4)生物成因元素(Zn、Cu)。 根据元素相关矩阵分析及主元素对应分析结果,结合富钴结壳的宏观与显微结构构造特征,认为老世代壳层成矿的主要海洋学因素是因南极冰盖扩大和南极底流与大洋环流作用增强,在海山斜坡形成的氧化作用环境、以及赤道太平洋表层海水高生物生产力引起的最低含氧层扩大作用。
    They are TTG granite bodies which suffered potassium metasomatism; TTG rocks with similar major elements compositions have different REE patterns indicating variety mineralogy component of accessory minerals;
    文章论述了主元素特征为钾质花岗岩的岩体实是钾化的TTG岩体 ,论述了主元素成分相同的TTG岩石具不同的稀土图谱 ;
    They are characterized by negative Ce anomaly, most of them fall into active continental margin field on major elements vs. minor elements Tectonic Setting Discrimination diagram. A study on lithology and petrogeochemistry suggests that the turbidites were formed mostly in the back arc basin environment of active continental margin and the sedimentary source rock of the turbidites was derived from the old arc island chain beside the sedimentary basins.
    论文对泥质浊积岩的主元素和微量元素地球化学特征进行了研究 ,在构造环境判别图上投点均落入活动大陆边缘区 ,稀土分布曲线呈近水平状 ,负 Ce异常不明显 ,显示出冈底斯构造带侏罗纪浊积岩形成于活动大陆边缘的弧后盆地环境 ,其物源为沉积盆地两侧有古老变质岩出露和弧火山活动的岛弧带
    A rapid, accurate and economic XRFS method for the analysis of the major elements in the Si—Mn—Fe alloy is desribed in this paper.
    建立用粉末样品压片、X射线荧光光谱法,测定硅锰合金的主元素含量的分析方法。
    The alkali fusion technique is characterized by high efficient and available for measurement of all major elements and more than 30 trace elements, though it gives relatively higher detect limit and hampers precise determination of trace elements with concentrations of < 0.2 μg/g.
    碱熔方法一次分解样品可以直接测定所有的主元素和30多种微量元素,但方法检出限增高,不能准确分析一些检出限高而含量低的元素。
 

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