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 。
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.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
2001年第3期293-296,共4页
Acta Petrologica et Mineralogica
