碱性玄武岩中的某些巨晶单斜辉石──Ⅱ:穆斯堡尔谱──兼论单斜辉石的异常穆斯堡尔谱和铁结构态的测定  

SOME MEGACRYST CLINOPYROXENES FROM ALKALI BASALT－Ⅱ: MOSSBAUER SPECTROSCOPY──A DISCUSSION ON ANOMALOUS MOSSBAUER SPECTRUM AND DETERMINATION OF Fe STRUCTURAL STATE OF CLINOPYROXENE

作　　者：章礼明[1] 傅平秋[1] 张恩林[1] 

机构地区：[1]中国科学院地球化学研究所,贵阳550002

出　　处：《矿物学报》1996年第1期14-19,共6页Acta Mineralogica Sinica

摘　　要：本文对辽宁宽甸碱性玄武岩中巨晶单斜辉石进行穆斯堡尔谱研究。应用晶体结构研究结果较合理地解释了单斜辉石的异常穆斯堡尔谱。结合XRD讨论了单斜辉石中Fe结构态的测定以及穆斯堡尔谱的可应用性。巨晶应结晶于相当氧化的环境。The Mossbauer spectra of some megacryst clinopyroxenes from alkali basalt in Kuandian, Liaoning Province, have been obtained and investigated. Based on the crystal structure analysesthe anomalous Mossbauer spectrum of clinopyroxene was reasonably explained. Combined withXRD, the determination of Fe structural state of clinopyroxene and the applicability of Mossbauerspectroscopy were discussed. The megacrysts were found to have been crystallized under a considerably oxidizing condition.

关 键 词：单斜辉石 碱性玄武岩 巨晶 穆斯堡尔谱 铁结构态 

分 类 号：P588.145[天文地球—岩石学]