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- Study on petrology, geochemistry and isotope chronology shows that the metallogenesis is closely related to granite-porphyry, which belongs to the Early Ordovician adakite formed in volcanic arc. 花岗斑岩与成矿作用关系密切,从岩石学、岩石化学、年龄学等方面对花岗斑岩进行了研究,认为花岗斑岩属于志留世早期形成于火山弧环境的埃达克岩。
- A detailed geological, isotope chronological, petrological and geochemicalstudy combined with collection and sorting out of relevant data has been carried out on thegranitoids. 本文系统收集和整理了相关地质资料,并对区内中生代花岗岩类进行了较详细的地质学、年代学、岩石学和岩石地球化学研究。
- THE EFFECT OF BACKGROUND POLLUTION ON AGE DATA IN ISOTOPE CHRONOLOGY 同位素年代学中本底污染对年龄数据的影响
- Keywords Jinwozi gold deposit;petrogenesis and mineralization;isotope chronology;ori-gin of ore deposit;eastern Xinjiang; 金窝子金矿;成岩成矿;同位素年代学;矿床成因;新疆东部;
- Relating to or in accordance with chronology. 年代学的与年代有关或依据年代的
- isotope chronology 同位素年代学
- U-Pb isotope chronology U-Pb同位素年代学
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素,尤指碳14。
- The following is a chronology of events. 以下为事件的发生时序。
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- Its most common form, or isotope, has 146 neutrons. 它最常见的形式或者同位素有146个中子。
- IS ~(40)Ca_(20) A STABLE ISOTOPE? ~(40)Ca_(20)是否稳定?
- Simmons: Get me a sample and some isotope readings. 弄些样本和同位素读数。
- Isotope shifts and hyperfine structure spectrum[J]. 引用该论文 马洪良.
- A historical novel that takes liberties with chronology. 一部随便改变年代顺序的历史小说
- Historians seem to have confused the chronology of these events. 历史学家好像把这些事件发生的年代顺序搞混了。
- Changes of nuclear mass and nuclear size cause isotope shifts. 原子核质量和大小的不同引起同位素移动。
- The process begins by mapping out a chronology of events. 流程由绘制事件时间表开始著手。
- The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比较各种石油或天然气。
- Li H Q.Chen F W.Cai H.Liu H Q Study on isotopic chronology of the Mazhuangshan gold mineralization,Eastern Xinjiang 1999(2 陈柏林.;吴淦国