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首页> 外文期刊>Chinese science bulletin >Discovery of hafnian zircons in the Suzhou granite
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Discovery of hafnian zircons in the Suzhou granite

机译：在苏州花岗岩中发现哈弗锆石

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Zircons, especially those from the granitic rocks, generally contain hafnium which replaces zirconium in isomorphic form. Levinson and Borup (1960) found zircons containing 22%—24% HfO_2 in Norway. Then, Hf-rich zircons have been recognized in many localities of the world. It is worth while to note that Correia Neves et al. have discovered hafnon with zircon structure and proposed a classification of the zircon-hafnon series, i.e. zircon: Hf/(Zr +Hf) =0.0— 0.1, hafnian zircon: Hf/(Zr +Hf) =0.1 — 0.5, zirconian hafnon: Hf/(Zr+Hf)=0.5—0.9, hafnon: Hf/(Zr+Hf)=0.9—1.0. However, all the hafnian zircons have so far been discovered in pegmatites. Hafnian zircons have also been recognized in Altai and Nanping granitic pegmatites in China, but HfO_2contents in these zircons do not exceed 20%. In the study of the rare-element minerals in the Suzhou granite, we have for the first time discovered hafnian zircons in which HfO_2 could attain 36%.
机译：锆石，尤其是来自花岗岩的锆石，通常都含有ha，以同晶形式代替锆。 Levinson和Borup（1960）在挪威发现锆石中HfO_2的含量为22％至24％。然后，富含H的锆石在世界许多地方都得到认可。值得一提的是Correia Neves等人。已经发现具有锆石结构的哈弗农，并提出了锆石-哈弗农系列的分类，即锆石：Hf /（Zr + Hf）= 0.0- 0.1，哈弗锆石：Hf /（Zr + Hf）= 0.1-0.5，锆石哈弗农： Hf /（Zr + Hf）= 0.5-0.9，哈夫农：Hf /（Zr + Hf）= 0.9-1.0。但是，到目前为止，所有哈弗锆石都在伟晶岩中发现。在中国的阿尔泰和南坪花岗伟晶岩中也发现了哈弗锆石，但这些锆石中HfO_2的含量不超过20％。在研究苏州花岗岩中的稀有元素矿物时，我们首次发现了哈弗锆石，其中HfO_2可以达到36％。

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