No. The terms felsic and mafic refers to the relative content of certain minerals in the magma or rock. A mafic rock can be extrusive like basalt, or intrusive like gabbro. Basalt and gabbro can be identical in chemical composition.
Porphyritic igneous rocks can display both intrusive and extrusive characteristics.
It is actually a mineral that appears in both extrusive and intrusive igneous rocks.
Felsic, high in silica. Mafic, low in silica. Intrusive, those formed underground. Extrusive, those formed above ground.
Extrusive rocks which cool more rapidly than intrusive rocks generally have smaller crystals.
Since igneous rocks are divided into two categories (intrusive and extrusive) an igneous rocks can be intrusive.
Igneous rocks are classified as either extrusive or intrusive. Extrusive rocks form from lava at or above the ground, and intrusive rocks form from magma below the ground. Granite is intrusive, pumice is extrusive.
Porphyritic igneous rocks can display both intrusive and extrusive characteristics.
Igneous rocks are described as intrusive or extrusive based on formation. Intrusive rocks forms underneath the earth surface, while extrusive rocks forms on the surface of earth.
extrusive
It is actually a mineral that appears in both extrusive and intrusive igneous rocks.
"intrusive" means forced into something, "extrusive" means forced out onto the surface. The igneous magma reaching the surface is therefore extrusive , producing extrusive igneous rocks, and all the rest of the magma is intrusive, producing intrusive igneous rocks.
Intrusive rocks form within the crust of the Earth while extrusive rocks form on the surface.
Felsic, high in silica. Mafic, low in silica. Intrusive, those formed underground. Extrusive, those formed above ground.
No. Volcanic rocks are extrusive. Intrusive rocks are sometimes called plutonic.
Neither, Igneous rock is either intrusive or extrusive. Thats what intrusive and extrusive is... A igneous rock.
Neither. The terms intrusive and extrusive apply to igneous rocks; marble is metamorphic.
Neither. Conglomerate is a sedimentary rock. Intrusive and extrusive are descriptive terms used to classify igneous rocks.