How is igneous sedimentary and metamorphic rocks made?
Igneous, sedimentary, and metamorphic rocks are all formed in a process known as the Rock Cycle. The basic “theme” of the cycle is that every rock can become every other rock, including itself. With that in mind, we can go through a basic run down of how the cycle works. Start with, say, a pile of sediments. Lets say these sediments get lithified, or cemented, together to create a sedimentary rock. This sedimentary rock lives its life until eventually it encounters a great deal of heat, usually within the earth, that causes it to melt. When this rock melts it becomes magma. Once this magma resurfaces to the earth, it cools, creating an igneous rock. So so far we have sediments that became a sedimentary rock, which melted into magma and then recooled to become igneous. Now this igneous rock lives its life until it comes into contact with a large amount of heat and pressure, again, usually inside the earth. This process creates a metamorphic rock. This rock lives its life until it is slo
