关于A型花岗岩命名问题的讨论
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P588.121

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A Discussion on the Naming of A_type Granite
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    摘要:

    针对目前国内A型花岗岩命名中出现的一些问题,建议以“碱性花岗岩类”一词代替A型花岗岩。碱性花岗岩类包括碱性和过碱性花岗岩及与之伴生的英碱正长岩、石英正长岩,以及与之伴生并且成分相近的碱长花岗岩和富碱的偏铝质花岗岩。这些岩石有相近的岩石化学成分、矿物成分和成岩构造环境。采用“碱性花岗岩类”一词易为国人接受,特别是有利于初学者和野外地质填图工作者进行岩石定名。

    Abstract:

    In view of some disputes that have cropped up in the naming of A-type granite in China, this paper suggests that the term alkaline granitoids should be used to replace the name A_type granite. Alkaline granitoids include alkaline and peralkaline granite, its associated katnosite and quartz syenite, and its associated and compositionally-similar alkali feldspar granite and rich-alkali meta_aluminous granite. These rocks have similar petrochemical compositions, mineral constituents and rock-forming tectonic settings. The term alkaline granitoids is likely to be accepted by Chinese geologists and is especially conducive to the naming of rocks by beginners and geological mapping workers.

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袁忠信,2001,关于A型花岗岩命名问题的讨论[J].岩石矿物学杂志,20(3):293~296. YUAN Zhong_xin,2001,A Discussion on the Naming of A_type Granite[J]. Acta Petrologica et Mineralogica,20(3):293~296.

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  • 最后修改日期:2001-04-17
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