您要查找的是不是：
- Li Huimin, Li Huaikun, Lu Songnian.Ore forming age of the Dongping gold ore: The U - Pb zircon dating of the hydrothermal zircon in the ore vein[J].Journal of Earth, 1997, 18(Sup. ) : 176 - 178. [6]李惠民;李怀坤;陆松年.;用矿脉中热液锆石的U-Pb定年确定东坪金矿的成矿时代[J]地球学报;1997;18(增刊):176-178
- It intruded in Upper Ordovician Shifeng Formation and is dated as 333 86Ma of U Pb concordant age of zircon, which belongs to middle stage of Variscan. 岩体侵入上奥陶统石缝组（O3s） ， 岩体的锆石U?Pb 一致线年龄333－86 Ma， 属华力西中期。
- Minerals or altered minerals such as sericite, biotite and K feldspar in the altered wallrocks are selected to be objects of age determination, and the Ar Ar, K Ar, Rb Sr, U Pb isochron dating methods are adopted. 选用矿石或蚀变围岩中的绢云母、黑云母、钾长石等蚀变矿物作为测年对象 ,采用 Ar- Ar、 K- Ar法或 Rb- Sr等时线法测年在目前的技术条件下是经济可行的 ,关键是要保证被测矿物确为蚀变矿物并且纯度较高。 用 U- Pb法测定矿脉中的水热锆石来确定成矿年龄 ,但如何区分继承锆石和水热锆石尚不成熟。
- SHRIMP U-Pb zircon dating for lamprophyre from Liaodong Peninsula: Constraints on the initial time of Mesozoic lithosphere thinning beneath eastern China. 辽东半岛煌斑岩SHRIMP锆石U-Pb年龄及其对中国东部岩石圈减薄开始时间的制约。
- ZIRCON U Pb AGE OF META BASIC LAVA FROM THE KUANPING ROCK GROUP,SHAANXI PROVICE 陕西宽坪岩群变基性熔岩锆石U-Pb年龄
- Chemical Th-U-total Pb isochron dating is a new method to calculate the geological ages based on EMPA dada of U, Th and Pb. 化学定年方法是利用电子探针分析副矿物中的U、Th、Pb含量而进行定年的一种新方法。
- K uhn va r . la tiuscu lum U nderw. (全草 )、南蛇藤 Celastrus orbicu la tus T hunb (全株 )。
- We only have an a la carte menu. 我们只有分类菜单。
- U/Pb zircon dating for Cretaceous adakitic volcanic rocks in eastern part of the North Dabie Mountains 北大别东部白垩纪埃达克质火山岩及其锆石U-Pb年代学
- Nothing could b u further from the tr Dating uth! 这完全与事实真相!
- They've been dating for a long time. 他们一直频频约会。
- U-Pb dating of zircon from gneiss at Nanhuang in East Anhui. 皖东南黄片麻岩的锆石U-Pb年龄。
- They haven't set a date for their wedding yet. 他们的婚期还没定下来。
- This Greek dish is of a very early date. 这个希腊盘子是很早时期的制品。
- QQ 你 start to work la....? whenever U free, pls. come. 版主,有咩做紧呀你,咁你要坐几多次太空山先!!!
- OICHope u can get wot u want soonestof course , not from me la ! 负资产的无业游民 -- 无钱收镜头.....有无人要同我买野?
- I tried to fix the date in my mind. 我试着把那个日期牢记在心。
- Can you produce any proof of your date of birth? 你能出示有关你的生日日期的任何证件吗？
- All our information is up to date on the computer. 我们计算机上的信息都是最新的。
- It is no good asking her for a date. 要求和她定个约会也没有用。
