海槽

hǎi cáo
  • trough
海槽海槽
海槽[hǎi cáo]
  1. 在横穿海槽的A、C两个剖面上,G。

    On the sections A and C that go across the trough , G.

  2. 冲绳海槽Z(14)-6孔氧同位素地层学研究

    The oxygen isotopic stratigraphy of core z_ ( 14_6 ) in Okinawa Trough

  3. 冲绳海槽沉积物中人工放射性~(137)Cs的分布规律

    Investigation of artificial radioactive isotope ~ ( 137 ) cs in Okinawa Trough sediments

  4. 冲绳海槽中部37CalkaBP以来的古气候和古海洋环境研究

    Paleoclimate and Paleoceanography Study of the Middle Okinawa Trough in the Last 37 Cal ka BP

  5. 冲绳海槽Jade热液区海底块状硫化物的Os同位素组成

    O_s isotopic compositions of seafloor massive sulfides from the Jade hydrothermal field in the Okinawa Trough

  6. 利用取自冲绳海槽北部的80个表层沉积物样品,对其中的放射虫壳体进行了定量分析研究。Q型因子分析得到3个主因子,方差累积贡献为90.2%;

    Quantitative analysis of radiolarians was carried out for 80 surficial sediment samples collected from the northern Okinawa Trough .

  7. 在马里亚纳海槽(18°N)附近的沉积岩芯中,火山碎屑物质丰富,且夹有数目不等的火山灰层。

    Two sediment cores from Mariana Trough ( located at 18 ° N ) are both rich in volcanogenic debris with a number of ash layers .

  8. 冲绳海槽中部Jade热液区热液沉积物中Ag的富集成矿作用

    Silver Enrichment and Mineralization of Seafloor Hydrothermal Sediment from the Jade Hydrothermal Field in the Middle Okinawa Trough

  9. 冲绳海槽Jade热液场烟囱物稀土元素和锶、钕同位素地球化学特征

    Rare earth element and strontium-neodymium isotope characteristics of hydrothermal chimney in Jade area in the Okinawa Trough

  10. 冲绳海槽Jade热液活动区热液沉积物主要以块状硫化物和硫酸盐矿物为主。

    The hydrothermal sediments from Jade hydrothermal field are mainly composed of massive sulfide ore and massive sulfate ore.

  11. 对拖网采自马里亚纳海槽热液活动区(18°N附近)的8个玄武质岩石样品进行岩石地球化学初步研究。

    This paper reports the result of a petrological geochemistry study of eight basaltic samples from the Mariana Trough hydrothermal activity regions ( near 18 ° N ) .

  12. 冲绳海槽沉积物中U,Ra,Th,~(40)K的地球化学研究

    The geochemical studies of u , th , ra , k ( ~ ( 40 ) k ) in sediments of Okinawa Trough

  13. 西沙海槽区表层沉积物具有SiO2、TiO2含量低和CaO含量高的特征;

    The surface sediments in the Xisha Trough show relatively low contents of SiO_2and TiO_2 and high content of CaO .

  14. 冲绳海槽中部Jade热液活动区中海底热液沉积物的硫同位素组成及其地质意义

    Sulfur isotopic composition of seafloor hydrothermal sediment from the Jade hydrothermal field in the central Okinawa Trough and its geological significance

  15. 冲绳海槽海底热液喷出口附近海水中~(210)Pb和~(210)Po的行为

    ~ ( 210 ) Pb and ~ ( 210 ) Po in sea water around the hydrothermal vents in the Okinawa Trough

  16. 早更新世以来南海中部的沉积作用层序III,分布范围同样仅限于海槽盆地,陆坡处缺失该层序,为早更新世沉积物。

    SEDIMENTATION IN THE MIDDLE SOUTH CHINA SEA SINCE EARLY PLEISTOCENE Sequence III that is early Pleistocene sediments also only distributes in the trough basin .

  17. ODP与冲绳海槽海底热水活动研究

    ODP and Study on the hydrothermal activity in the middle Okinawa Trough

  18. 利用AVO研究西沙海槽水合物与BSR的对应关系

    Using AVO to analyse the relationship between the gas hydrate content and BSR in Xisha Trough

  19. 马里亚纳海槽玄武岩K-Ar定年及其地质意义

    K-Ar dating of Mariana Trough basalts and its significance

  20. 层序IV,在陆坡和岛弧地区都有分布,但是在海槽盆地内部区域缺失该层序,为上新世沉积物。

    We found that sequence IV , which is Pliocene sediments , only exists in the slope and island arc slope and not distributes in the trough basin .

  21. 西沙海槽BSR发育区热流值计算及其特征分析

    Estimation and analysis of the heat flow in the BSR area of Xisha trough

  22. 俯冲组分是岩浆源中的另一个主要成分,贡献量为20%左右,是造成海槽区玄武岩中Pb强烈富集的重要原因。

    The component derived from the subducting makes a contribution of at most 20 % , that results in the intensive enrichment of Pb in the basalts in the Trough .

  23. 用ICP-MS对冲绳海槽Jade热液活动区中6个块状硫化物样品进行了稀土元素分析。

    Rare earth elements of 6 massive sulphide samples from the Jade hydrothermal field in the central Okinawa Trough have been analyzed with the ICP-MS.

  24. 结果表明在Z.冲绳海槽构造活动的差异性及其非同步发展

    The transketolase activity of Z. difference in tectonic activity along the Okinawa Trough and its non - synchronous development

  25. 马里亚纳海槽区岩芯中浮游有孔虫和CaCO3溶解及其影响溶解的因素

    The Features of Planktonic Foraminifera and CaCO_3 and Their Dissolution and Controlling Factors in the Cores of the Mariana Trough

  26. 晚第四纪冲绳海槽北段CaCO3含量的时空变化及其控制因素

    Spatial-temporal variability of caco_3 contents of the core sediments from the northern Okinawa trough during late Quaternary and its controlling factors

  27. 利用以Sr同位素为参数的二端员混合方程进行物源定量分析的结果表明,冲绳海槽中段的西坡和槽底表层沉积物硅酸盐相以陆源物质为主,最大值为9107%;

    Quantitative partition illustrates that sediments from the bottom and eastern slope of the middle Okinawa Trough are dominated by terrigenous detritus , maximum content accounting for 91 07 % .

  28. 冲绳海槽中段沉积岩芯的氧碳同位素测定和YD事件

    The Determination of Sedimentary Cores , Oxygen and Carbon Isotope and " YD " Event in Central Okinawa Trough

  29. 冲绳海槽南部A23孔浊流沉积层的粒度特征

    Grain-size characteristics of turbidite sediments in core A23 from the southern Okinawa Trough

  30. 北大西洋洛克尔海槽东北部水深约1000~1000m处有两个大型沉积物波发育区。

    Tow sediment wave fields are developed in a depth zone of about 1 000 1 100m in the north eastern Rockall Trough .