The main factors which directly govern the development of texture in all igneous rocks are________
A) cooling rate, dissolved volatiles, and silica content
B) weathering and climate
C) buoyancy, crystal settling, and partial melting
D) volcano or pluton size and shape

Question

Quizplus · Accepted Answer

The development of texture in igneous rocks is directly influenced by the cooling rate, which affects the size of the crystals; dissolved volatiles, which can affect the formation and growth of crystals; and the silica content, which influences the viscosity of the magma and thus the rock's texture.

The Main Factors Which Directly Govern the Development of Texture