Igneous Rock Types and Textures

In this video, we examine igneous rocks, including the ways in which they form and their

Extrusive igneous rocks Extrusive igneous rocks are formed at the Earth's surface as a result of the partial melting of rocks within the mantle and crust The

wwwtherock88com Basalt: the most common volcanic rock on Earth Composed of essential calcic plagioclase and pyroxene, sometimes with olivine, feldspathoids or interstitial

ufarocket Igneous rocks occur as fragmental and coherent units of varied form Disruption of liquid rock near and at the surface by the explosive expansion of dissolved