铀铅

嗯，主要还是铀铅年份测试法的应用。

Um ... and it was basically because of Uranium Lead Dating .

总之，铀铅年份测试法给我们带来了一些惊喜。

Anyway , Uranium Lead Dating has produced some surprises .

在铀铅年份测试法里有几个令人兴奋的可能性。

There are a few pretty exciting possibilities for Uranium Lead Dating .

用铀铅年份测试法，我们能将这一理论论证得更具总结性。

Well , with Uranium Lead Dating , we could prove that more conclusively .

像我之前说过的那样，我们已经使用铀铅年份测试法有一段时间了。

Like I said before , Uranium Lead Dating has been with us for a while .

我估计铀铅年份测试法将成为越发受人欢迎的年份测试法。

So I ' ll predict that Uranium Lead Dating is going to become an increasingly popular dating method .

但是现在我们得到了不同的方法和更多的惊喜，这种我们至今仍在使用的技术被称为“铀铅年份测试法”。

But now we ' ve learned something different , and quite surprising , using a technique called Uranium Lead Dating .

所以，正因为这种，这种进行铀铅年份测试的新方法，我们有能力判定我们对大峡谷的重大假设之一是错误的。

So because of this , this new way of doing Uranium Lead Dating , we ' ve been able to determine that one of our major assumptions about the Grand Canyon was wrong .

应用离子探针SHRIMP测定锆石铀-铅年龄时，锆石选点至关重要，它将直接影响实验结果的可靠性和准确性。

When dating Zircon U-Pb ages by SHRIMP , choosing the target points of zircon is very important as they directly affects the reliability and accuracy of the results .

铀-铅同位素谱系研究及其在铀矿地质中的应用

The study of U-Pb isotopic SPECTRUM-SYSTEM and its application to uranium geology

铀和铅对大肠杆菌毒性的研究

Study on the toxicity of uranium and lead to E.coli

独居石的电子探针钍-铀-铅化学测年

Th-U-TPb Chemical Dating of Monazite by Electron Probe

玄武岩中铅同位素和微量铀钍铅的测定

Determination of Pb Isotopic Ratios and Trace U , Th , Pb Concentration of Basalts

激光探针等离子体质谱测定单颗粒锆石铀-铅年龄

Uranium-Lead Age Determination of Single Zircon Grain by Laser Ablation Microprobe-Inductively Couple Plasma Mass Spectrometry

激光探针等离子体质谱同时测定锆石微区铀-铅年龄及微量元素

Simultaneous Determination of U Pb Ages and Trace Elements in Single Zircon by Using LAM ICPMS

用放射性示踪法研究分离铀和铅、铋

A study on the extraction and separation of lead and bismuth from uranium by radiotracer method

用放射性示踪法研究了TBP-苯体系对铀和铅、铋的萃取分离。

The extraction and separation of uranium from lead and bismuth with TBP-benzene was studied by radiotracer technique .

根据铀-铅同位素体系演化原理论证了铀的活化成矿观点；

On the basis of principle of uranium-lead isotope system evolution , the viewpoint of uranium mobilized mineralization has been proved ;

而当锆石凝结时，锆石里面的铀转化成铅。

And when Zircon crystallizes , the Uranium inside it begins to change into Lead .

催化极谱法同时测定核纯八氧化三铀中痕量铅和镉

Simultaneous determination of trace cadmium (ⅱ) and lead (ⅱ) in Nuclear-pure u_3o_8 by catalytic polarographic method

本文报道了安徽亳县LL4型球粒陨石的全岩、球粒、橄榄石、辉石和陨硫铁的铅同位素比值，以及上述部分样品的铀、钍、铅的含量。

The isotopic compositions of lead were determined on the samples of whole rock , chondrule , olivine , pyroxene and troilite from Bo County chondrite ( class LL4 ) of Anhui prov . , China .

国外电子探针铀-钍-铅定年方法及其在构造分析中的应用前景

U-Th-Pb Dating by Electron Microprobe and Its Application in Structural Analysis

（产刂）子坪铀矿床铀&铅同位素演化体系的研究

The study of U-Pb isotopic evolutionary system in Chan Zi Ping uranium deposit

醋酸发酵；，具负染色性（醋酸铀和柠檬酸铅染色）。

The fermentation of acetic acid ; It stained negative by uranyl acetate and lead citrate .

散射背景内标法测定1：5万区域地球化学调查样品中铀、铜、铅、锌、钍

U , Cu , Pb , Zn and Tu in 1:50000 regional geochemistry sample by scattering background internal standard method

这取决于铀、钍、铅的相对含量和岩浆结晶时间。

It depends on the relative abundances of uranium , thorium and lead in the mineral , and the time of feldspar crystallization .

再进行超薄切片，经醋酸铀和柠檬酸铅双重染色，在透射电镜下观察超微结构病理改变。

At last , the specimens were made into serial ultrathin section , stained in uranyl acetate and lead citrate , and the specific ultrastructure features were observed under transmission electron microscope .

华南某花岗岩型铀矿床成矿机理的铀铅同位素体系研究

The metallogenic mechanism of a granite-type uranium deposit in South China in special reference to its U-Pb isotopic systematics

富矿石样品中铀石单矿物的铀铅同位素年龄集中分布于20~10Ma之间。

Uranium-lead isotopic ages of the uranium mineral & coffinite in high-grade ores of the uranium deposit are centered at Miocene time between 20 Ma and 10 Ma .

土霉素片含量的醋酸双氧铀比色测定方法复制大鼠全脑缺血再灌动物模型，超薄切片，醋酸双氧铀和柠檬酸铅双重染色，JEM1200透射电镜观察。

COLORIMETRIC DETERMINATION OF OXYTETRACYCLINE TABLETS BY URANYL ACETATE Methods The ultrathin section , uranyl acetate and citromalic acid lead double stainings and JEM-1200 electron microscope were used .