Is Marble Intrusive Or Extrusive

The coarse grained rock is made up of different elements including quartz and feldspar and its formation makes it an intrusive rock.

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. Before discussing further differences between both rocks let us see what is a rock and what are intrusive rocks and extrusive rocks. The central cores of major mountain ranges consist of intrusive igneous rocks usually granite. Granite is an intrusive igneous rock composed mainly of feldspar.

Gabbro and granite are examples of intrusive igneous rocks. Extrusive igneous rocks are formed when molten magma spill over to the. The molten material then slowly solidifies below earth s surface where it may later be exposed through erosion. The terms magma and lava have been used interchangeably for a long time and rightfully so.

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. Start studying science rocks. Examples of intrusive igneous rocks are diabase diorite gabbro granite pegmatite and peridotite. Learn vocabulary terms and more with flashcards games and other study tools.

Intrusive igneous rocks crystallize below earth s surface and the slow cooling that occurs there allows large crystals to form. Extrusive rock any rock derived from magma molten silicate material that was poured out or ejected at earth s surface. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals. Br br as a result you won t be able to see them as individual.

By contrast intrusive rocks are formed from magma that was forced into older rocks at depth within earth s crust. Intrusive igneous rocks are formed when the magma cools off slowly under the earth s crust and hardens into rocks. Some cool so.