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引言 由Tsuboi(1936)改进的Merwin折光率-波长色散法,目前仍是矿物快速测定和精确研究单个矿物颗粒性质的有效工具。我们的目的是把这种方法扩大到从普通镁铁质岩浆缓慢晶出的橄榄石、斜方辉石和普通辉石。这种方法的优点很多,它只在检板上用10个或稍多一些的颗粒,就能迅速、方便地获得统计资料,而且成本低,精度和准确度都合乎要求。 把色散法扩展到新矿物种属的基础,一是测定
Introduction The Merwin refractive index-wavelength dispersion method, as modified by Tsuboi (1936), is still an effective tool for the rapid determination of minerals and the precise study of the properties of individual mineral particles. Our aim is to extend this method to olivine, orthopyroxene and pyroxene that slowly crystallize out of normal mafic magma. This method has many advantages. It can quickly and easily obtain statistics with only 10 or more particles on the plate, and it is low cost, accurate and accurate. The dispersion method is extended to the basis of new mineral species, one determination