Question

Whrite a essay on the Diffrence of Extrusion and intrusion

Answer 1

The basic difference lies in where the two rock types are formed and hence their corresponding texture.

The intrusive igneous rocks are formed as the MAGMA cools below the earth surface. Tgis cooling takes places rather slowly thereby leading to the formation of well developed crystals.

Extrusive igneous rocks are formed by the rapid cooling of LAVA on the surface of earth. The rapid cooling leads to the formation of rocks that have fine crystals As the minerals crystallised quickly after a volcanic explosion on the earth surface.