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- 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
- 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。
- zircon U - Pb age 锆石U-Pb年龄
- zircon U - Pb geochronology 锆石U-Pb年代学
- single zircon U - Pb ages 颗粒锆石U-Pb年龄
- 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
- SHRIMP zircon U -Pb dating SHRIMP锆石U-Ph定年
- The expedition suffered all the rigo(u)rs of a Canadian winter. 这支探险队饱受了加拿大严冬的折磨。
- These are high quality white zircon 3mm. 这些是质量很好的白色3毫米锆石。
- Suitble for Pb free glazes with Ti or Zn. 适合含钛、锌无铅釉。
- F can promote the emission of Pb,Cd,Zn and Cu. 氟会促进Pb,Cd,Zn和Cu的逸放。
- Zircon: Increases your money by a random amount. 随机增加你的金钱数量。
- Save the Adventure Island PB really need efforts. 救救冒险岛的PB真的需要努力了。
- Don't harbo(u)r unkind thoughts. 别心怀叵测。
- Hg ?Cd?Pb?As and Cr are common industry wastage. 汞、镉、铅、砷、铬等是工业废物中常见的重金属。
- He twisted the wire into a U shape. 他把金属丝拗成了一个U字形。
- I am using this to connect to my IsoClean 204P PB. 佰威单晶银墙苏: 音色比较清爽细致; 音场深; fast & accurate.
- PB: What is your take on cultural relativism? 那么,你是怎么看待文化相对主义的呢?
- The vowels in the English alphabet are a, e, i, o, u, and, sometimes, y. 英语的元音字母有a,e,i,o,u,有时也包括y。