A Look at Igneous Rocks Cecelia Brannon
Publisher: Enslow Publishing

The type of igneous rocks even though they look different from i “. It is the bedrock of the ocean floor and also occurs on land in extensive lava flows. Volcanic and plutonic rocks are types of igneous rock. Igneous rock forms when hot, liquid rock, or magma, cools and solidifies. Pumice, obsidian and tuff are associated rock types. Let's take a closer look at plutonic rocks. Rhyolite is an extrusive igneous rock formed during eruptions of granitic magma. Volcanic rocks cool Use the magnifier to look at the specimens closely. Volcanic rocks are also known as 'extrusive igneous rocks. Let's take a look at igneous rock formation where tectonic plates move apart or diverge. There are two types of igneous rocks, based on rates of cooling. Scoria is a dark colored, extrusive igneous rock with a vesicular texture. Basalt is an extrusive igneous rock.