同位素年龄测定
- 网络Isotopic dating;isotopic age dating
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X射线粉晶衍射、X射线单晶分析;红外吸收光谱、穆斯堡尔谱、同位素年龄测定,获得了大量有价值的数据。
X-RAY Powder analysis , X-RAY single crystal analysis , ir analysis , mossbauer spectrometer analysis , age determination by mass spectrometer , etc.
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一种简单的辉钼矿Re-Os同位素年龄测定中Re化学分离方法:钽试剂萃取法
A BPHA extraction method for chemical separation of Re for molybdenite Re-Os dating
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人类火葬新碳同位素年龄测定表明
New radiocarbon dates of human cremation burials there indicate that
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根据同位素年龄测定的最新结果,提出前寒武系-寒武系界线年龄值为597Ma。
Based on new isotopic age data , the age of the Precambrian-Cambrian boundary should now be 597 Ma .
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经过野外宏观观测、室内显微分析及同位素年龄测定,基本厘定医巫闾山是一个白垩纪时形成的变质核杂岩。
Yiwul ü shan mountain is proved to be a metamorphic core complex formed in Cretaceous according to field survey , microstructural analysis , and isotropic dating .
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根据岩性、岩相、地震反射、测井响应、古生物、构造旋回、接触关系及同位素年龄测定等,将辽河盆地下第三系划分为4个层序和12个亚层序。
Based on lithology , lithofacies , seismic reflection , log response , paleobiology , tectonic cycle , contact relationship and isotopic dating , the lower paleogene in the Liaohe Basin is divided into 4 sequences and 12 subsequences .
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Ar-Ar质谱法对南极乔治王岛火山岩同位素年龄的测定
Ar-Ar Isotopic Dating of Volcanic Rock in George King Island , West Antarctica
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辽河盆地中、新生代火山岩及其钾&氩同位素地质年龄测定
The distribution of volcanic rocks in Meso-Cenozoic in Liaohe Basin and their isotopic datings on k-at
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含稀有、稀土花岗岩型矿床是受地洼构造控制成矿的,成矿岩体产于中生代燕山期,根据同位素地质年龄测定资料大致在180&70×10~6年,矿床类型可归纳为六种;
The metallization of the Nb-Ta and rare earth ore deposits of granite type is controlled by diwa tectonic structures . The ore-bearing granite rocks occur in Yanshanian stage of Mesozoic-Cenozoic . The K-Ar dating of mineralization is from 180 to 70 m.
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据野外地质观察、同位素地质年龄测定、孢粉分析及微量元素测定等成果的综合研究,论证了灌阳县城郊紫红色岩系为第四纪沉积的岩溶岩系。
Based on the geological observation , the determination of geological age by isotopes , the sporopollen analysis and the geochemical analysis of trace element , the author demonstrates that the purple rock series in the suburbs of Guanyang is the karst rock series of the Quaternary period .