摘要
从140个已知成分的角闲石的晶胞参数作图,发现在β-v_0图上不同种属的角闪石有各自的分布区,克服了前人用β-d_(100)图难以喹定角闪石种属的困难。
Amphibole is one of the most complex rock-forming minerals. Study of the relation of unit cell parameters to chemical composition of amphibole reveals that its unit cell parameters are affected evidently by chemical composition. According to the international classification principle of crystal chemistry of amphibole, the chemical composition of amphiboles provides a basis for crystal-chemical classification of the amphibole. Therefore, we suggest an intrinsic relation between unit cell parameters and crystal-chemical classication of amphiboles. On the basis of unit cell parameters a large number of accurately named amphiboles is collected, and a β-vo diagram is set up for identifying the species of monoclinic amphiboles.
出处
《地质科学》
CAS
CSCD
北大核心
1992年第4期394-398,共5页
Chinese Journal of Geology(Scientia Geologica Sinica)
关键词
角闪石
X射线
粉末法
晶胞
amphibole, crystal-chemical classification, X-ray powder diffraction, unit cell parameters, β-ν_0
