查询词典 trace element

The comparative studies of lithogeochemistry for the volcano-intrusive complexes both from Jiulongzhang and from xiangshan reveal that the chemical compositions of the volcano intrusive complexes in the two areas are very close, and the trace element spidergrams and REE patterns basically coincide with each other. It is also shown that the two volcano-intrusive complexes have the same source features and the active continental margin tectonic settings. At the same time, it is found that, from early volcanic magma activities to later intrusive magma activities, the content of SiO2 and the Rb/Sr ratio decreased, on the contrary, the content of MgO and the ratios of K/Rb, Ba/Rb and LREE/HREE increased. It is shown that the hypabyssal or ultra-hypabyssal intrusives are not the products of the volcanic magmatic differentiation.

两地区的火山－侵入杂岩的岩石化学成分及其变化特点极为相近，微量元素蛛网图和稀土配分型式也基本一致，它们具有相似的岩浆过程和统一的活动陆缘构造背景；同时，从早期火山岩浆活动到晚期浅成－超浅成岩浆侵入活动，其w(SiO2)和w/w的值降低，而w以及w/w、w/w和w/w的值增高，晚期浅成－超浅成侵入岩与早期火山岩没有直接的分异演化关系。

The genesis and evolution of spilite-quartz keratophyre formation are discussed through studies on Sm-Nd, Rb-Sr, K-Ar isotopic characteristics of the volcanic rocks and its geological setting, and comprehensive studies of petrology, lithochemistry, trace element, REE characteristics of the volcanic rocks.

从Sm-Nd、Rb-Sr、K-Ar同位素年代学和区域地质背景以及岩石学、岩石化学、微量元素、稀土元素等方面探讨了细碧岩-石英角斑岩建造的成因及演化。

The content of the same element had greater difference in different parts of vegetables and the contents of trace elements in the leaves of Lactuca sativa L. were all higher than that in the stem. Pb content of 70% vegetables didn't exceeded the limited quantity of national standard.

蔬菜不同部位同一元素的含量有很大差别，窝笋叶中微量元素含量都比离笋茎中高。70%蔬菜中Pb含量均未超过国家标准限量。

Petrology, petrological chemistry and trace element characteristics of lamprophyre in the Denggezhuang and Jinqingding mining areas of Jiaodong shows that it belongs to barkevikite-plagioclase lamprophyric series, derived from the upper mantle.

胶东邓格庄和金青顶金矿区煌斑岩的岩石学、岩石化学和微量元素特征显示其为碱性煌斑岩类的棕闪斜煌斑岩，起源于上地幔。

Buckwheat is rich in oleic acid, linolic acid, rutin, bitter principle, trace element and all kinds of amino acid human needs.

荞麦是二十一世纪的健康营养食品，荞麦本身富含油酸、亚油酸、芦丁、苦味素及人体所需的微量元素和必需的各种氨基酸，在国内被推崇为调节人体均衡营养的时尚佳品。

On such a basis, afurther test was mado on applying additional fertilizer with more Zn, Mn, Mo, B and Co to an area deficient in trace nutritive elements and aseful element for the purpose of raising the yield of rice, maize, peanut and apple.

试验结果表明，增施微肥后，水稻、玉米、花生产量提高，平均增产10％以上，亩增收入平均40元以上，苹果增产30％以上，亩增收入大于1000元，增产效果和经济效益是明显的。

According the Sr - Nd isotopic and trace element characteristics and field observation, the mafic dikes are not affected by crustal material during emplacement.

根据Sr、Nd同位素、微量元素研究及野外地质观察，本区基性岩脉的岩浆在上升侵位过程中未发生地壳物质混染。

The mineralogy, petrology, rare earth and trace element geochemistry, Re-Os and Sr-Nd isotopic geochemistry of the black shales and cherts of Yuretusi Formation at the bottom of the Cambrian in Xiaoerbulake and Shugeitebulake sections from northern Tarim Basin have been systematically studied. It was discovered that the high enrichment of some deep source metal elements in the black shales deals with the activity of hydrothermal fluid from the lower crust or upper mantal.

本项目对塔里木盆地北部肖尔布拉克和苏盖特布拉克两剖面下寒武统底部玉尔吐斯组富有机质黑色页岩和硅质岩的矿物学、岩石学、微量元素、稀土元素、Re-Os和Sr-Nd同位素地球化学进行了系统研究，发现该黑色页岩中部分深源金属元素的高度富集与来自盆地下部上地幔或下地壳的深部物源的热水流体作用有关。

Middle Pacific Ocean;; East China Sea;; Marine Nepheloid Layer;; suspended particles;; trace element;; typhoon process

论文导师杨作升，论文学位博士，论文专业海洋地质论文单位中国海洋大学，点击次数 2，论文页数 124页File Size5648K

The overall appearance of these fossils reflects a shelf sedimentary environment, which fit in with the neritic sedimentary environ ment reflected by the trace element feature of the mudstone and sandstone.

遗迹化石。这些遗迹化石及浅海底栖动物化石在总体面貌上反映了陆棚沉积环境，与泥岩、砂岩的微量元素特征所指示的近岸沉积环境是一致的。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。