Is Marble Extrusive Or Intrusive

The terms intrusive and extrusive apply to igneous rocks.

Is marble extrusive or intrusive.

Igneous rocks are divided into two groups intrusive or extrusive depending upon where the molten rock solidifies. Extrusive rock any rock derived from magma molten silicate material that was poured out or ejected at earth s surface. The melt originates deep within the earth near active plate boundaries or hot spots then rises toward the surface. Intrusive igneous rocks crystallize below earth s surface and the slow cooling that occurs there allows large crystals to form.

The molten material then slowly solidifies below earth s surface where it may later be exposed through erosion. Examples of intrusive igneous rocks are diabase diorite gabbro granite pegmatite and peridotite. Carbonatites may be confused with marble and may require geochemical verification. By contrast intrusive rocks are formed from magma that was forced into older rocks at depth within earth s crust.

The question is granite intrusive or extrusive is therefore a common among many people. The terms magma and lava have been used interchangeably for a long time and rightfully so. The coarse grained rock is made up of different elements including quartz and feldspar and its formation makes it an intrusive rock. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals.

The terms intrusive and extrusive apply to igneous rocks.