isotopic dating meaning in English
同位素测定年代
同位素测定年龄
同位素测年龄
同位素年代年龄测定
同位素年龄测定
用同位素的时代测定
Examples
- Evidence from isotopic dating suggests that the greenstone belts vary considerably in age .
来自同位素年龄鉴定的证据指出，绿岩带在年龄上彼此变化相当大。 - New isotopic dating information in iran and its geological interpretation
伊朗同位素研究新资料及其地质解释 - Abstract : based on the isotopic dating data of volcanics and recent research achievements of age boundary between jurassic and cretaceous systems , it is suggested that the volcanic series in shengyuan basin must be attributed to lower cretaceous
文摘:本文根据盛源盆地火山岩同位素年龄数据和侏罗-白垩系界线年龄的最新研究成果，认为盛源盆地火山岩系的地层时代应属早白垩世。 - By having conducted 40ar - 39ar dating of 35 samples and sm - nd dating of 19 samples from the linzizhong volcanic rocks , the post - collision volcanic rocks and a granite dike and the yarlung zangpo ophilite , the dissertation provides significant new data and results for optimizing the time framework of tectonic - magmatic event s of this region . according to isotopic dating of 9 samples , 12 experiments survey in the main trunk profile , the eruption age of the linzizhong volcanic rock in the linzhou basin has been determined as 54 - 64ma
本论文通过35个样品的~ ( 40 ) ar - ~ ( 39 ) ar及19个样品的sm - nd同位素测年，获得了关于俯冲?碰撞阶段形成的林子宗火山岩、后碰撞火山岩与花岗岩及雅鲁藏布蛇绿岩的同位素年龄数据，为完善研究区构造?岩浆事件的时间格架提供了新的资料与成果。