Is Marble Intrusive Or Extrusive

Before discussing further differences between both rocks let us see what is a rock and what are intrusive rocks and extrusive rocks.

Is marble intrusive or extrusive.

Marble is a metamorphic rock that was originally limestone a sedimentary rock and is composed primarily of the mineral calcite. By contrast intrusive rocks are formed from magma that was forced into older rocks at depth within earth s crust. Intrusive rocks are very hard in nature and are often coarse grained. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals.

Extrusive igneous rocks are formed when molten magma spill over to the. Intrusive vs extrusive rocks the key difference between intrusive and extrusive rocks is that the intrusive rocks are formed from magma whereas the extrusive rocks are formed from lava. The terms magma and lava have been used interchangeably for a long time and rightfully so. Examples of intrusive igneous rocks are diabase diorite gabbro granite pegmatite and peridotite.

The terms intrusive and extrusive apply to igneous rocks. Learn vocabulary terms and more with flashcards games and other study tools. Some cool so. Granite is an intrusive igneous rock composed mainly of feldspar.

Extrusive rock any rock derived from magma molten silicate material that was poured out or ejected at earth s surface. Intrusive igneous rocks are formed when the magma cools off slowly under the earth s crust and hardens into rocks. Start studying science rocks. The question is granite intrusive or extrusive is therefore a common among many people.

The molten material then slowly solidifies below earth s surface where it may later be exposed through erosion. The central cores of major mountain ranges consist of intrusive igneous rocks usually granite. Gabbro and granite are examples of intrusive igneous rocks.