铅同位素特征可作为找矿的重要标志。
We therefore can use the characteristics of the lead isotope, which serve as an important...
铅同位素特征可作为找矿的重要标志。
We therefore can use the characteristics of the lead isotope, which serve as an imp...
砂金中的微量铅同位素分析具有特殊的意义。
The isotope analysis of minim lead in the gold dust has special meaning.
铅同位素是示踪成矿物质来源的重要手段之一。
Pb isotope is one of the important methods to reverse the origin of ore-forming matter.
用硫、碳和铅同位素组成说明成矿物质的复杂来源。
The isotopic composition of lead, sulphur and carbon demonstrate a complex source of ore forming material.
改造的结果使得矿床的硫、铅同位素产生均一化作用。
The reformation has led to the homogenization of sulfur and lead isotopes in the ore deposit.
矿石与盆地的中新生界沉积岩系的铅同位素组成相似。
The Pb isotopic composition of the ore is similar to that of Mesozoic_Cenozoic sedimentary rocks in this basin.
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;
壳型花岗岩具较高的铅同位素比值和富铀铅贫钍铅的特点；
The crust granites have higher lead isotope ratios and are richer in uranium lead but poorer in thorium lead.
同位素示踪法着重阐述了较先进的碳、氮、氧和铅同位素的示踪。
The isotope tracer method presents the advanced method of carbon isotope, nitrogen isotope, oxygen isotope and Pb tracer.
铅同位素示踪技术是环境地球化学中极具发展前景的研究手段之—。
Lead isotopic tracing is one of the most prospective methods in environmental geochemistry.
异常铅二次等时线是普通铅同位素地质学研究中非常重要的一个课题。
The study on secondary isochron of anomalous lead is a very important problem in the common lead isotope geology.
矿石和岩浆岩具有非常相似的铅同位素组成，暗示了二者的亲缘关系。
The ore and the magma share similar lead isotopic features which suggests a close relations between them.
本文系统地研究了长江中下游及邻区区域各类地质体铅同位素组成背景。
The paper systematically deals with the background of regional lead isotopic compositions in the lower and middle reaches of the Yangtze River and neighbouring areas.
我国南岭地区泥盆系层控矿床的铅同位素组成变化很大，大多属混合型铅。
The lead isotopic composition of the Devonian stratabound ore deposits in the Nanling region is highly variable and belongs mostly to the "mixing type".
铅同位素示踪理论应用于城市环境污染源的研究，能够取得比较理想的结果。
And the study on application of lead isotope tracing for city environment pollution sources can get a good result.
近年来铅同位素示踪在研究土壤中相关重金属来源及其运移途径起到独特的作用。
In recent years lead isotope tracing has been playing its unique role in studying the source and migration of heavy metals in soil.
铅同位素研究揭示，该板块富铀、钍，从而为铀矿省的形成提供了必不可少的地质前提。
The plate is enriched in U and Th revealed by Pb-isotopic study, which plays an role of essential prerequisite for the formation of U province.
岩石铅同位素构造演化模式判别结果表明，煎茶岭超基性岩石的成岩物质来自亏损上地幔；
Projecting the lead isotope compositions on the Pb tectonic evolution model, the result indicates that the raw material of Jianchaling ultrabasic rock coming from the deplete upper mantle.
铅同位素结果研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅具有富含放射性成因铅的特点。
Lead isotope research shows that lead in ores of Mujiazhuang copper deposit and near ore country rocks is characterized by being rich in radioactive lead.
铅同位素组成反映主要来源于造山带或成熟弧环境，上地壳铅也不同程度地提供了成矿物质。
Lead isotope compositions of ore sulfides suggest multiple sources for the metals that range from the crust to the mantle, with certain amounts derived from the orogen or island arc.
铅同位素组成反映主要来源于造山带或成熟弧环境，上地壳铅也不同程度地提供了成矿物质。
Lead isotope compositions of ore sulfides suggest multiple sources for the metals that range from the crust to the mantle, but by and large metals come from the orogen.
硫同位素分析结果表明硫来自地壳深部混合硫源，而铅同位素分析结果反映其来源存在多源性。
Sulfur isotopic analyses are consistent with derivation of sulfur from a mixed source in deep crust, and lead isotopic analyses support derivation of lead from multiple sources.
硫、铅同位素和锇同位素初始比值显示，成矿物质主要来自含矿侵入岩体，但是也有其它来源。
Sulfur and lead isotopic features and initial OS values suggest that the ore-forming materials were mainly derived from the host quartz diorite and granodiorite.
矿石铅同位素组成稳定，为正常普通铅，矿石铅来源于早白垩世上地壳物质部分熔融形成的岩浆。
The Pb isotopic composition of ore sulfides is stable and the ore lead is ordinary common lead. Ore lead derived from magma, which came from partial melting of the upper crust in Early Cretaceous.
矿石铅同位素模式年龄和石英斑岩体侵入年龄的一致性反映燕山期构造、岩浆和成矿作用的密切关系。
Consistence between isotopic model age of lead ore and intrusion age of quartz porphyry shows close relations among structure movements, magmatism and mineralization in Stage of Yenshan.
铅同位素“双稀释剂”同位素定年法是当前应用较广的一种铅同位素定年方法。双同位素稀释法的目的在于校正质量鉴别效应，提高测定精度。
"Double spike" isotopic dating method of lead isotope is one of the dating ways of lead isotope, its aim is to correct mass differentiation effect and enhance the precision of measure.
《范铸》一文再次提出有关问题，认为铅同位素分析结果不能确切指示青铜器铜锡铅原料的来源信息。本文考察了其依据的实验数据，它们似乎与其观点互相矛盾，其结论说服力相当有限。
Qin et al raised some related questions once again and stressed that lead isotope analyses could not reveal the source information of copper, tin or lead in bronze research.
金矿床的铅、氢、氧和硫同位素组成高度分散，表明成矿物质具有多来源性。
Scattered distribution of lead, hydrogen, oxygen and sulphur isotopes in the gold deposits is possibly indicative of diverse sources of ore_forming materials.
金矿床的铅、氢、氧和硫同位素组成高度分散，表明成矿物质具有多来源性。
Scattered distribution of lead, hydrogen, oxygen and sulphur isotopes in the gold deposits is possibly indicative of diverse sources of ore_forming materials.
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