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.
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.
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.
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.
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.
通过对矿区矿石、岩石中铅、硫、氧同位素组成研究，查明青龙村群为金的矿源层。
Based on the research of isotope ratios of lead, sulfur, oxygen and carbon in the ores and rocks of this area, it is held that Qinglongcun Group serve as the source bed of gold.
通过对矿区矿石、岩石中铅、硫、氧同位素组成研究，查明青龙村群为金的矿源层。
Based on the research of isotope ratios of lead, sulfur, oxygen and carbon in the ores and rocks of this area, it is held that Qinglongcun Group serve as the source bed of gold.
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