500-To 750-Word Explanation Regarding The Origin Of Igneous Rocks
Associate Program Material
History of Rock Worksheet
Write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks.
| Plate tectonics play a major role in the origin of igneous rocks. Igneous rocks are called fire rocks and are formed either|
|underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped|
|in small pockets. As these pockets of magma cool slowly underground,the magma becomes igneous rocks. Igneous rocks are also formed |
|when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. |
|Igneous rocks are formed as the lava cools above ground. Rock formed of …show more content…
These rocks were once igneous or sedimentary rocks. The |
|rocks are under tons and tons of pressure, which makes heat build up, and this causes them to change. If you exam metamorphic rock |
|samples closely, you'll discover how flattened some of the grains in the rock are. The word "Metamorphism" comes from the Greek |
|word Meta which means change and Morph which means form, metamorphism means to change form. In geology this refers to the |
|changes in mineral assemblage and texture that result from subjecting a rock to pressures and temperatures different from those |
|under which the rock originally formed. Metamorphism, therefore occurs at temperatures and pressures higher than normal Rocks can |
|be subjected to these higher temperatures and pressures as they become buried deeper in the Earth. Such burial usually takes place |
|as a result of tectonic processes such as continental collisions or subduction. In most cases, the overall chemistry of the |
|metamorphic rock is very similar to that of the parent rock. A quartz sandstone, for example, will metamorphose into a rock that
History of Rock Worksheet
Write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks.
| Plate tectonics play a major role in the origin of igneous rocks. Igneous rocks are called fire rocks and are formed either|
|underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped|
|in small pockets. As these pockets of magma cool slowly underground,the magma becomes igneous rocks. Igneous rocks are also formed |
|when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. |
|Igneous rocks are formed as the lava cools above ground. Rock formed of …show more content…
These rocks were once igneous or sedimentary rocks. The |
|rocks are under tons and tons of pressure, which makes heat build up, and this causes them to change. If you exam metamorphic rock |
|samples closely, you'll discover how flattened some of the grains in the rock are. The word "Metamorphism" comes from the Greek |
|word Meta which means change and Morph which means form, metamorphism means to change form. In geology this refers to the |
|changes in mineral assemblage and texture that result from subjecting a rock to pressures and temperatures different from those |
|under which the rock originally formed. Metamorphism, therefore occurs at temperatures and pressures higher than normal Rocks can |
|be subjected to these higher temperatures and pressures as they become buried deeper in the Earth. Such burial usually takes place |
|as a result of tectonic processes such as continental collisions or subduction. In most cases, the overall chemistry of the |
|metamorphic rock is very similar to that of the parent rock. A quartz sandstone, for example, will metamorphose into a rock that