海槽
- trough
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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.
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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
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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
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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
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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
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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 .
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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 .
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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
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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
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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.
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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 ) .
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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
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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 .
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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
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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
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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 .
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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
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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
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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
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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 .
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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
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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 .
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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.
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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
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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
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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
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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 % .
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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
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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
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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 .