Cooling and deformation ages in ~(40)Ar/~(39)Ar dating;
~(40)Ar/~(39)Ar测年中的冷却年龄和变形年龄
This paper uses geomath techniques to deal with geological ages and major chemical compostion of volcanics on basis of petrochemical feature, field occurrences and erosion degree and division of volcanism is made into 5 eruption stages and 2 cycles.
本文应用数学地质方法对火山岩地质年龄值和某些重要化学组分进行研究，结合火山岩岩石化学特征、野外产状、风化剥蚀程度等进行分期分类。
isotopic age determination
同位素地质年龄测定
INFORMATION ANALYSIS OF ISOTOPIC GEOLOGY AGE DATA FROM NORTHWESTERN HUBEI
鄂西北同位素地质年龄数据信息分析
Its diameter is about3000 meters, and the depth is250 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。
Various geochronometric methods have been applied to dating of important geologic events in complex Archean terranes.
在复杂的太古代地体的重要地质事件定年中已采用了多种地质年龄测定方法。
The geologist theorized brilliantly about the age of the earth.
这地质学家出色地导出有关地球年龄。
Geologists have calculated the age of the earth.
地质学家已经计算出了地球的年龄.
Zircon U-Pb Age of Siliceous Rock from the Central Jilin and Its Geological Significance
吉林中部硅质岩中锆石U-Pb年龄及其地质意义
DETERMINATION OF ~(129)I AGES FOR GROUNDWATER WITH SUPERSENSITIVE ACCELERATOR MASS SPECTROMETRY(AMS)
超灵敏加速器质谱计测定地下水~(129)Ⅰ年龄方法
PRELIMINARY STUDY OF THE Nd ISOTOPIC MODEL AGES OF THE PRECAMBRIAN METAMORPHIC STRATUM IN NORTHEASTERN JIANGXI PROVINCE
赣东北前寒武纪变质地层钕模式年龄初步研究
SHRIMP Zicon U-Pb Dating and Its Geological Implication for the Xiangshan Porphyric Dacite-Rhyolitic
相山流纹英安斑岩锆石SHRIMP U-Pb年龄及地质意义
~(40)Ar/~(39)Ar isotope ages of main geological bodies in Xiongcun copper-gold deposit,Xietongmen County,Tibet,and their geological significance
西藏谢通门县雄村铜金矿主要地质体的~(40)Ar/~(39)Ar年龄及地质意义
Zircon U-Pb Age and Geological Significance of the Taizili Granitic Gneiss from Western Liaoning Province
辽西地区台子里花岗质片麻岩锆石U-Pb年龄及其地质意义
U-Pb zircon SHRIMP age of metamorphic rocks from the basement of the Qiangtang basin,northern Tibet,and its geological signiflcance.
藏北羌塘盆地基底变质岩的锆石SHRIMP年龄及其地质意义
U-Pb Ages of Detrital Zircon from Meta-Sedimentary Rock from the Huwan Shear Zone,Western Dabie Terrain and Their Geological Significance
西大别浒湾高压变质带变沉积岩锆石U-Pb年龄及地质意义
Single-grain zircon U-Pb isotopic ages,geochemistry and its implication of the Pulang complex in Ynnnan Province,China.
云南普朗复式岩体锆石U-Pb年龄和地球化学特征及其地质意义
Eva carries off her age well.
伊娃巧妙地隐瞒了年龄。
disparity in age [position]
年龄[地位]的完全不相称
Made by Nike. Suitable for all ages. Shatter resistant neoprene gasket. Single silicone strap.
适合任何年龄层，抗碎性氯丁胶垫圈，硅胶质地的泳镜带。