该蛇绿岩有高的稀土和微量元素丰度，表明其来源于富集地幔。
This ophiolite has higher REE and trace element abundances, suggesting it was derived from the enriched mantle.
研究了稀土和微量元素对鸡胚生长发育的影响及吸收分布情况。
To investigate how rare earth and trace elements affect the growth of embryo, its absorption and distribution, Hailan strain eggs were used as the experiment material.
石炭纪酸性火山岩的稀土和微量元素地球化学特征与陆内流纹岩相似。
The silicic volcanic rocks of Carboniferous times has similar REE and trace elemental geochemistry as continental rhyolite.
萨尔托海蛇绿岩由稀土和微量元素图解表明属岛弧型蛇绿岩，与地质背景一致。
The Saertohai regional ophiolites demonstrated by discrimination diagram of trace elements and rare earth elements belong to island arc type, and are consistent with the geological background.
本文概括了这两个地区的玄武岩类在岩石学、地球化学、稀土和微量元素等方面的差别和各自的特点。
This paper studies difference between volcanic rocks in the two areas on the basis of petrology, geochemistry, ra...
试验表明：稀土及其复合孕育剂能有效地消除微量元素的危害，改善铸铁的组织和性能。
It was showed by experiment that re and RE-containing inoculant could effectively eliminate the harmful effects of trace elements, and improve the structure and properties of cast iron.
本文主要结合该矿床的分布与地质特征，研究了微量元素和稀土元素的地球化学特征。
The geochemical characteristics of trace and rare-earth elements are studied in conjunction with the distribution and geological characteristics of the ore deposit.
通过对微量元素和稀土元素的研究，可以得出广汉粘土层的形成具有同源成分特征。
Through the study about lanthanon and trace element, we can obtain the Guanghan claypan formation that has the homologous ingredient characteristic.
利用稀土元素和微量元素，分析鄂尔多斯盆地中部上三叠统延长组母岩类型和物源方向。
Rare earth elements (REE) and trace elements were used to analyse source rock and source direction of Yanchang Formation of the Upper Triassic in Ordos Basin.
微量元素比值蛛网图和稀土元素配分型式具有岛弧钙碱性玄武岩的特征。
The spider diagram of trace element ratio and the REE distribution patterns show the characteristics of the island arc calc alkaline series.
油页岩灰渣中稀土元素和微量元素富集度均高于油页岩。
The contents of both REE and trace elements in the oil shale residue are higher than those in oil shale.
基性岩墙和玄武岩的稀土元素、微量元素、形成环境等均与板内玄武岩或典型的地幔柱成因玄武岩具有相似的特点。
Rare earth elements (REE), trace elements and forming environment of basic dykes and basalt share similar characteristics with plate basalts and typical basalt formed by mantle column.
在岩矿鉴定的基础上，对晋中冀西太原组中段普遍发育的一层火山事件层做了岩石化学、稀土元素和微量元素分析。
A volcanic event layer in the Middle Taiyuan Formation of Late Palaeozoic is widely distributed in the central Shanxi and western Hebei.
在岩矿鉴定的基础上，对晋中冀西太原组中段普遍发育的一层火山事件层做了岩石化学、稀土元素和微量元素分析。
A volcanic event layer in the Middle Taiyuan Formation of Late Palaeozoic is widely distributed in the central Shanxi and western Hebei.
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