稀土元素通常是同时被发现的，一般来说轻稀土元素的数目远甚于重稀土元素。
Rare earth metals are often all found together, typically with far more light than heavy elements.
随着时代变新，玄武岩碱性逐渐增强，轻、重稀土元素分离程度及不相容元素富集程度也逐渐增强。
With the ages becoming younger of the basalts, their alkali, the fractional degree of LREE/ HREE and incompatible elements enrichment increased.
研究表明玄武岩首先风化形成蒙皂石族粘土矿物，在此过程中稀土元素没有明显的分馏作用，强风化的玄武岩重稀土元素强烈亏损；
It is concluded that the half-weathered basalts have not distinct REE fractionation and strong weathered basalts had HREE loss in the process of the basalts weathered to form smectite family minerals.
其实，一些稀土元素在国际市场上的价格根本就没有下跌，尤其是那些所谓的重稀土元素，如铽(用于制造先进的激光器和光学仪器)等。
Indeed, some international prices haven't fallen at all, in particular those that are known as heavy rare earths, like terbium, which is used in advanced lasers and optics.
矿石中矿石矿物磁铁矿与脉石矿物石榴石和矿区火山岩的稀土元素配分型式相似，均属重稀土富集型。
The ore minerals (magnetites), vein minerals (loivines), and ore district volcanics own similar REE partition pattern of heavy REE concentration type.
稀土元素表明，与铜矿有关的岩浆为同熔型，而与银多金属矿有关的为地壳重熔型。
The study of REE shows that the magma type related to copper deposits is syntectic type, and that to silver polymetallic deposits is mainly re-melting type.
目前研究表明：较低浓度的稀土元素可以促进植物种子的萌发、根的生长、根重的增加和不定根发生等。
The present results showed that the REEs at a lower concentration stimulate germination of seeding, promote root growth, increase root length and induce adventitious rooting.
稀土元素球粒陨石标准化曲线显示轻稀土富集重稀土亏损；
The standard curve of chondrite of rare earth element reveals a deficit of light rare earth enriched the heavy one;
稀土元素球粒陨石标准化曲线显示轻稀土富集重稀土亏损；
The standard curve of chondrite of rare earth element reveals a deficit of light rare earth enriched the heavy one;
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