年龄测定 meaning in English
age dating
age determinations
chronometry
dating
Examples
- Age determination data indicate episodic crystallization of uranium minerals .
年龄测定数据表明，铀矿物有着不同期的结晶。 - Its diameter is about 3000 meters , and the depth is 250 meters
它的直径约3000米，深约250米；据同位素地质年龄测定约七千万年。 - Dating of triassic granites in the western kunlun mountains and its tectonic significane
西昆仑西段三叠纪两类花岗岩年龄测定及其构造意义 - The speech will discuss the physical principles that control cosmogenic isotope production in rocks and provide some examples of surface exposure dating from the literature
本次报告将讨论有关岩石中宇宙成因核素产率的基本物理原理,并将从发表的文献中,给出暴露年龄测定的某些实例 - This paper studies cretaceous volcanics distribution , rock types , tectonic setting and reservoir characteristics in the western depression of liaohe fault depression through statistics of compound logging data , core observation , thin section identification , cathodeluiminescence , scanning electron microscope , x - ray diffraction analysis , image analysis , rock chemical analysis , isotope age testing , and inclusions temperature testing
摘要通过全区综合录井资料的统计、大量的岩心观察，并利用薄片鉴定、阴极发光、扫描电镜、 x衍射分析、图像分析、岩石化学分析、同位素年龄测定、包裹体温度测定等10余种方法，对辽河断陷西部凹陷白垩纪火山岩分布、岩石类型、岩石系列、形成的构造背景及储层特征进行了研究。