An igneous rock is a rock that started as molten magma then cooled and solidified either above,on,or below the surface. An sedimentary rock is a type of rock that is formed by sedimentation of material at the earths surface and within bodies of water.An metamorphic rock is the result of the transformation of an existing rock type, the protolith, in a process called metamorphism.
Not really. They're one of the three types of rocks (the other two being igneous and metamorphic), and are the rocks formed by processes acting on the earth's surface. Sediment refers to particles, or grains, of weathered rock or mineral debris. Lesson Summary. All three rock types-igneous, sedimentary, and metamorphic-make up a portion of the rock cycle. Igneous rocks are rocks that formed directly from magma and can form either in the earth or on its surface. Igneous rocks can weather and be compressed to form sedimentary rocks, rock made up eroded material broken off of other rocks and cemented together, and both of these can be transformed into metamorphic rock. In certain conditions, igneous or sedimentary rocks can be changed into different rocks under intense heat and pressure. These rocks literally change into new substances very different from their old ones. This usually happens as rocks are buried deep within the crust. One of the most common metamorphic rocks is marble. Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means change in form. The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure (1500 bars), causing profound physical and/or chemical change. The protolith may be a sedimentary rock, an igneous rock or another older metamorphic rock. Metamorphic minerals are those that form only at the high temperatures and pressures associated with the process of metamorphism. These minerals, known as index minerals, include sillimanite, kyanite, staurolite, andalusite, and some garnet. Igneous, Sedimentary, and Metamorphic Rocks. The three types of rocks igneous, sedimentary, and metamorphic are all subject to processes that change one rock type into another. The images below show several types of rocks undergoing these processes. Just as evaporation and precipitation are processes that move water through the water cycle, igneous, sedimentary, and metamorphic rock-forming processes move rocks through the rock cycle. In this investigation, you ll examine a detailed example of a rock traveling through the rock cycle Sedimentary rocks are formed by the lithification of the sediments  which accumulate from the erosion of … preexisting rocks of all  types. They also included rocks form from animal and plant remains.   Metamorphic rocks are formed when sedimentary or igneous rocks are  heated and or squashed. The particles formed are then be redeposited to form new sedimentary rocks. To form an igneous rock out of a metamorphic rock you need have conditions in the Earth that will raise the temperature high enough to form a melt out of the rocks. This melt (magma) can then form new igneous rocks. Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from partial melts of pre-existing rocks in either a planet's mantle or crust. Intrusive igneous rocks are formed from magma that cools and solidifies within the crust of a planet, surrounded by pre-existing rock (called country rock); the magma cools slowly and, as a result, these rocks are coarse grained. Making the world better, one answer at a time. An igneous rock is a rock that started as molten magma then cooled and solidified either above,on,or below the surface. An sedimentary rock is a type of rock that is formed by sedimentation of material at the earths surface and within bodies of water. An metamorphic rock is the result of the transformation of an existing rock type, the protolith, in a process called metamorphism, which means ''change in form. The particles formed are then be redeposited to form new sedimentary rocks. To form an igneous rock out of a metamorphic rock you need have conditions in the Earth that will raise the temperature high enough to form a melt out of the rocks. This melt (magma) can then form new igneous rocks. 1. Igneous rocks are crystalline solids which form directly from the cooling of magma. This is an exothermic process (it loses heat) and involves a phase change from the liquid to the solid state. The earth is made of igneous rock-at least at the surface where our planet is exposed to the coldness of space
http://study.com/academy/lesson/sedimentary-rocks-definition-types-examples.html http://study.com/academy/lesson/rock-cycle-igneous-sedimentary-and-metamorphic-rocks.html https://en.wikipedia.org/wiki/Metamorphic_rock https://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page01.cfm http://www.answers.com/Q/What_is_the_definition_of_igneous_rock_sedimentary_rock_metamorphic_rock https://en.wikipedia.org/wiki/Igneous_rocks http://www.answers.com/Q/What_is_the_definition_of_igneous_rock_sedimentary_rock_metamorphic_rock https://answers.yahoo.com/question/index?qid=20100412110650AAczGxR
igneous metamorphic sedimentary definition