JSTOR Daily

The Mineralogical Classification of Igneous Rocks: A Comparison of Recent Proposals

This is a preview. Log in through your library . Abstract Twelve of the more recent proposals for the classification of igneous rocks are discussed with the intention of noting points of agreement and ...
BBC

Rock types

Igneous rocks close igneous rockIgneous rocks are those which have been formed by the cooling and solidification of molten rock (magma) from underneath the earth’s crust. are formed by magma from the ...
Nature

Quantitative Classification of Igneous Rocks Based on Chemical and Mineral Characters, with a Systematic Nomenclature

Quantitative Classification of Igneous Rocks Based on Chemical and Mineral Characters, with a Systematic Nomenclature. By Whitman Cross Joseph P. Iddings Louis V. Pirsson Henry S. Washington, with an ...
Nature

Eruptive Rocks: their Genesis, Composition, Classification, and their Relation to Ore-Deposits; with a Chapter on Meteorites

PROF. SHAND'S interesting and original book is, as he says in the preface, the outcome of three insistent wishes: first, to clean up the “jungle of rock names;” second, to make the results and ...