Quantitative Classification of Igneous Rocks: Based on Chemical and Mineral Characters With a Systematic Nomenclature (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Quantitative Classification of Igneous Rocks: Based on Chemical and Mineral Characters With a Systematic Nomenclature

In this review no attempt will be made to give a complete historical sketch of petrography, but rather to study in a some what critical way the course of development through which the science has passed, to analyze the more important contributions to its advancement, and especially to examine the principles nominally applied in formulating schemes of classification and to test the methods of application as to their logical directness and consistency. From some cause the existing systems are commonly regarded as unsatisfactory and inadequate. And this condition indicates either that the principles of classification have not been wisely chosen or that they have been incorrectly applied.

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