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The CL characteristics and the ratio of ~ 232 Th/~ 238 U of zircons reveal that the former is formation age of amphibolite,and the later is its metamorphic age.
锆石CL图像和放射性同位素地球化学特征显示前者为岩浆结晶年龄，后者为构造-热事件年龄。
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According to the isotopic age data of inherited zircons in igneous and metamorphic rocks which occur at the surface and are derived from deep crust of the North China, Yangtze blocks and Qinling-Dabie orogenic belt, the paper is mainly reports some new information of Archean rocks and briefly discusses its geological significance.
本文根据华北和扬子陆块及秦岭大别造山带地表和深部出露的各种岩石中发现的继承性锆石的测年数据，报道了太古宙基底和岩浆事件的新信息，并简要地论述其地质意义。
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In the Cathodoluminescence images the zircons extracted from the dioritic gneiss show good crystal morphology and clear oscillatory zoning, as is the case of magmatic zircon.
在阴极发光图像中，片麻岩中的锆石具有较好的晶形，并显示出清晰的岩浆锆石韵律环带结构。
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On the basis of the form and internal structure of the Bixiling peridotitic zircons from the southern Dabie Orogen, in situ U-Pb ages and Hf isotope of them were analyzed.
在详细形态和内部结构研究基础上，对碧溪岭橄榄岩锆石进行了配套的U-Pb年龄和Hf同位素分析。
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And even yonger ages for inherited detrital zircons and magmatic zircons of paragneiss.
副片麻岩中包含了730Ma、680Ma、621Ma和较年轻的继承性碎屑锆石和结晶锆石年龄。
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- 更多网络解释与zircons相关的网络解释 [注：此内容来源于网络，仅供参考]
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refractometer：折射仪
红宝石是双折光(Double Refraction)带有两种颜色,尖晶石是单折光,只带有一种颜色,由折射仪(Refractometer)可测出之. 折射率─从缅甸莫肖(Mogok)矿出土,现放置于洛杉矶的自然博物馆(Naturalaluminium oxide powder)融熔在坩锅火炉(furnaces)内,在将熔(Aquamarines)、电气石(Tourmalines)、蓝色锆(Blue zircons)