您要查找的是不是:
- zircon SHRIMP U - Pb dating 锆石SHRIMP
- 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 SHRIMP ages of Aolaoshan granite from the south margin of Qilianshan and its geological significance. 祁连南缘嗷唠山花岗岩SHRIMP锆石年龄及其地质意义。
- An apatite sample separated from the 3.8 Ga (zircon SHRIMP U-Th-Pb age) meta-quartz-diorite sample in Anshan area has been dated using SHRIMP II. 本文报道了鞍山地区3.;8Ga(锆石SHRIMP年龄)变质石英闪长岩中磷灰石SHRIMP U-Th-Pb定年结果。
- U - Pb dating of zircon 锆石U-Pb定年
- Based on the study of the zircon SHRIMP chronology,the boundary between the Jurassic and the Cretaceous strata is located at the bottom of the sandstone in the Weimei Formation. 结合锆石SHR IM P年代学研究可以确定侏罗纪/白垩纪的界线位于前人认为的维美组上部砂岩之底。
- The age of granulite facies metamorphism of Baishahe rock series is early Paleozoic rather than early Proterozoic,it was certified by zircon SHRIMP age of from Al-rich gneiss. 白沙河岩系泥质变质岩石的变质锆石SHRIMP微区定年表明、白日其利沟以及金水口等地的白沙河岩系局部麻粒岩相变质作用时代为早古生代,而不是前人认为的早元古代。
- 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
- Zircon SHRIMP Dating of Yunmeng Shan Granites and Geological Signification 北京云蒙山花岗岩体锆石SHRIMP定年及其地质意义
- However,Wanghuichun et al. (unpublished data) has obtained U-Pb zircon SHRIMP age for Wulashan amphibolitesuggested as middle to new Archean in past literature from the southwest of Guyang that are1953~1967Ma. 在原一直认为是中太古代~新太古代的变质火山岩(乌拉山群)取得1953~1967Ma的锆石U-Pb SHRIMP年龄(王惠初等,未刊资料)。
- Zircon SHRIMP dating of Yunmengshan gneissic granite and its geological significance 北京云蒙山片麻状花岗岩锆石SHRIMP定年及其地质意义
- 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
- Zircon SHRIMP dating of the Xitian granite pluton, Chaling, southeastern Hunan, and its geological significance 湘东南茶陵地区锡田岩体锆石SHRIMP定年及其地质意义
- ZIRCON SHRIMP DATING OF THE LONGTANG ALKALINE GRANITE AT LUODING, GUANGDONG, AND ITS GEOLOGICAL IMPLICATIONS 广东罗定龙塘碱性花岗岩锆石SHRIMP定年及地质意义
- U - Pb dating U-Pb年龄
- Keywords intrusive rock;characteristics;petrogenesis;zircon SHRIMP dating;Mesozoic;Fanchang in Anhui; 侵入岩;特征;成因;锆石SHRIMP测年;中生代;安徽繁昌;
- LA - ICP - MS U - Pb dating LA-ICP-MSU-Pb定年
- SHRIMP U -Pb zircon age SHRIMP锆石U-Pb年龄
- Keywords Tonghua area;Zircon SHRIMP U-Pb dating;Paleoproterozoic orogenic belt;clastic Zircon; 通化地区;锆石SHRIMP;古元古代造山带;碎屑锆石;