Here are 6 ways how to design a more effective website footer: Letâs start with a very basic, yet effective aspect of your website footer: Its visual appeal. Even if you donât put any social media buttons, links, or other information in your footer, it can still make up a powerful part of your site.
An igneous rock is one formed from the cooling and solidification of magma or lava. Examples include basalt, rhyolite, pumice, scoria, granite, diorite, gabbro, and obsidian. â¦ Magma solidifying under the surface results in coarser grained intrusive igneous rock.
Let's review. Igneous rocks are rocks made from the cooling and solidifying of molten rock. There are two categories of igneous rocks. Volcanic rocks are rocks formed when lava cools and solidifies on the earth's surface. Volcanic rocks are also known as 'extrusive igneous rocks' because they form from the 'extrusion,' or eruption, of lava from a volcano.