Obsidian is an extrusive rock thats shaped when magma from beneath the Earths crust breaches and turns into lava. As soon as the lava begins cooling, it solidifies and parts are frozen, giving the rock its glassy look.
Obsidian is an extrusive rock thats shaped when magma from beneath the Earths crust breaches and turns into lava. As soon as the lava begins cooling, it solidifies and parts are frozen, giving the rock its glassy look.
Fast cooling on earths floor is the situation that you simply
would count on a glassy extrusive rock like obsidian to type. So as to add, an obsidianis a naturally occurring volcanic glass shaped
as an extrusive igneous rock. Its made when felsic lava emitted from a
volcano cools swiftly with minimal crystal development.
Obsidian is an extrusive rock thats shaped when magma from beneath the Earths crust breaches and turns into lava. As soon as the lava begins cooling, it solidifies and parts are frozen, giving the rock its glassy look.
The right reply can be D. Fast cooling on Earths floor! Obsidian isa volcanic rock shaped by the speedy solidification of lava with out crystallization! I hope I helped!-Loliarual
This post is last updated on hrtanswers.com at Date : 1st of September – 2022