克拉克值

  • 网络Clarke;Clark value;CLARKE value
克拉克值克拉克值
  1. 地层中Au的丰度值为克拉克值的2~3倍,是形成金矿的矿源层。

    The Au abundance in stratum is more 2 or 3 times than Au clarke , thus the Tahua Group is an ore source bed .

  2. 引用并探讨了元素浓集克拉克值K与成矿能耗E之间的关系。

    Relation of element concentration clarke ( K ) to energy depletion is introduced and discussed .

  3. 从中国陆壳所含C、H元素质量分数分析,中国陆壳的C、H元素质量分数高于全球平均含量的克拉克值。

    In view of analysis of C , H contents in Chinese continental crust , they are higher than Clarke value of global average content .

  4. 由于矿区外围赋矿地层的Sn含量远低于Pb、Zn的含量,也远远低于地壳克拉克值,因此推测,Sn主要来源于花岗岩浆;

    The content of Sn of the external stratum is far less than the content Pb , Zn of external stratum and crust Clarke value .

  5. 硅灰岩透镜体的铀乎均含量比克拉克值高出1&2个数量级,其它伴生元素(Zn、Mo、Cu、Ni和As等)含量也较高。

    Average uranium content in siliceous limestone lenses is 1-2 orders of magnitude higher than Clark value , and contents of its associated elements ( Zn , Mo , Cu , Ni and As , etc. ) are relatively high .

  6. 其中的元素显著地贫TiO2和Al2O3,大部分微量元素相对于地壳克拉克值亏损,但Ba、Sb、Hg、Ag和Bi等少数几种元素例外地富集;

    This formation is poor in TiO 2 and Al 2O 3 with most of the trace elements depleted in relation to their clarke values , although a few including Ba , Sb , Hg , Ag and Bi are exceptionally enriched ;

  7. 黄土高原黄土的平均化学成分与地壳克拉克值的类比

    Comparison of average chemical composition of loess in Loess Plateau with Clark values of crust

  8. 矿区内地层和岩浆岩钼元素含量分别是克拉克值的43倍和21倍。

    Mo abundance of strata and magmatic rocks is43 and21 times of Clark value , respectively .

  9. 作者根据发展了的克拉克值和原子克拉克值概念。

    In this paper , after the evolution of the concept of " clarke ", the atomic clarke was discussed .

  10. 并且,黄土的平均化学成分十分接近现在使用的地壳克拉克值。

    Moreover , the average chemical compositions of las were very close to Clark values of crust , which are used at Present .

  11. 结果显示硫铁矿焙烧灰渣中铊含量远高于克拉克值和土壤背景值;

    The study shows that the contents of thallium in pyrite cinders are obviously higher than the Clark value and soil background values .

  12. 根据区域化探水系沉积物测量分析3万余件样品中40种元素含量,统计了32种微量元素的背景平均值、浓度克拉克值、总体变化系数等参数。

    In the light of the contents of forty kind elements of more than thirty thousand regional stream sediment samples in Fujian province , the average background values , concentration Clarke and total variability coefficients were collected .

  13. 在利用水系沉积物富集系数估计值对浓度克拉克值进行校正后,使用顺序号累加法对福建省32种元素内生成矿作用的规模进行预测排序,并分析了银、硼的资源潜力。

    After correcting the concentration Clarke with the stream sediment accumulation coefficients , endogenic metalization scales of thirty-two kind elements were prognosised with the help of additive method of the order , and the prospect of silver and boron were analyzed .

  14. 飞灰和底灰中大多数元素高于全国土壤背景值,7种元素高于克拉克值,其余8种低于克拉克值。

    In fly ash and bottom ash , most of the trace elements have higher contents than soil background values of whole country , and the contents of 7 trace elements are higher than Clarke values and other 8 lower than Clarke values .

  15. 并以浓集克拉克值(研究区)和变异系数为主,讨论了不同岩类岩石微量元素丰度及其特征,提出了寻找金银多金属矿、特别是判断有关地球化学异常找矿意义的建议。

    According to the concentration clarke and variation coefficients of these elements , the authors discussed the abundances of trace elements and their features , made suggestions of looking for Au Ag polymetallic deposits and evaluating the significance of geochemical anomalies to prospecting of mineral resources .