Figure 10e-1: The classification of igneous rocks.
This graphic model describes the difference between nine common
igneous rocks based on texture of mineral grains, temperature
of crystallization, relative amounts of typical rock forming
elements, and relative proportions of silica and some common
minerals.
〔Okanagan University CollegeのDepartment of GeographyのMichael
Pidwirny氏によるPhysicalGeography.netの『FUNDAMENTALS
OF PHYSICAL GEOGRAPHY』の『CHAPTER
10: Introduction to the Lithosphere』の中の『(e).
Characteristics of Igneous Rocks』から〕 |