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Geological characteristics of Luoguhe tourmaline-bearing granites in Mohe County, Heilongjiang Province, and their implications
Author(s): 
Pages: 23-31
Year: Issue:  1
Journal: Acta Petrologica et Mineralogica

Keyword:  tourmalinegranitesyn-collisionalperaluminousgeochemistryErgun block;
Abstract: 洛古河地区含电气石花岗岩为二长花岗岩类,普遍碎裂或糜棱岩化,属高钾钙碱性岩系.SiO_2含量介于65.08%~73.18%之间,Na_2O+K_2O含量范围为5.49%~7.22%,K_2O>Na_2O;Al_2O_3含量在14.42%~16.64%之间,铝饱和指数(A/CNK)为1.18~1.31,均大于1.1,CIPW标准矿物计算均出现刚玉分子,显示为强过铝质S型花岗岩的特点.稀土总量(∑RE...
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