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The Rock Cycle
Transcript of The Rock Cycle
Examples of cycles on Earth are, the water cycle and the rock cycle. Types of Rocks Three types of rocks are...
*Sedimentary The rock cycle works by-Igneous rock goes through weathering and erosion and turns into small particles of sediments, and the sediments go through compaction and cementation to create sedimentary rock. Sedimentary rock goes through heat and pressure and creates metamorphic rock. metamorphic rock melts from all the heat in its location and it creates magma, which cools into igneous rock. then the cycle repeats itself. Sedimentary Rocks Sedimentary rock often contains fossils, and has layers of rock, but some times it is round or flat. it is made by pieces of sediments pressed together. it has pores between its pieces, and its colors can vary from red, gray, black, brown, and more. Igneous Igneous rocks normally contain no fossils. it usually is made up up of layers, and has two or more minerals in them. Many times they have crystals in them that come in many sizes. Sometimes igneous rocks have openings or glass fibers. they may sometimes look classy, but they come in many different colors, such as pink, gray, and black. Metamorphic Rock Metamorphic rock rarely has fossils. it has alternate band of light and dark minerals, and it may have layers of visible crystals. it rarely has pores or openings, and it may have been bent or curved from foliation. its colors vary from black, gray, red, pink and white. Why the Rock Cycle is Important The rock cycle is very important, or vital, to Earth. This is because rock cycle is the continuous succession of rock formation, erosion and reformation. Its forces have shaped Earth's surface for 4.5 billion years. Its life-giving properties are powered by great convection currents in the mantle causing crustal movements (plate tectonics) that form continents, mountain ranges and ocean basins. With time, the Earth's crust has been altered, reformed and eroded to form igneous, sedimentary and metamorphic rocks. Without the rock cycle, Earth would not have many of the things we do today. If I had to choose one rock to study in depth, i would choose metamorphic rock. This is because i think that metamorphic rocks are really cool, the way they were formed by hot lava from deep in the Earth. I would like to know more about how they were EXACTLY formed, and what they are all about. How it Works The rock cycle works by-Igneous rock goes through weathering and erosion and turns into small particles of sediments, and the sediments go through compaction and cementation to create sedimentary rock. Sedimentary rock goes through heat and pressure and creates metamorphic rock. metamorphic rock melts from all the heat in its location and it creates magma, which cools into igneous rock. then the cycle repeats itself. How it Works My Rock . .
. . The Rock Cycle .