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For most purposes there is no "beginning" to the rock cycle. Any rock can be weathered away and remade into sedimentary rock. Igneous rocks are sometimes depicted as the start of the rock cycle because the first rocks on Earth were igneous.

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Where did sediment come from?

Sedimentary rocks are formed from the erosion of different material from tops of mountains and hills. Sedimentary rocks are formed by the build up and ensuing consolidation of sediments into different types of rocks.


How do igneous rock form to sedimentary rocks?

Sedimentary rock can be changed into igneous rock by undergoing melting and then solidification. At a subduction zone (at a convergent plate boundary, where one plate slides beneath another), layers of sedimentary rock will be assimilated into the mantle. Some areas may undergo enough heating to actually melt, especially if there is water or carbon dioxide trapped in the rock. If this rock later makes it to the surface and cools, it will become an igneous rock. Another area where sedimentary rock could be changed into igneous rock is on the interior of a composite volcano -- The heat and force of the magma could break off chunks of volcanic welded tuff, causing it to melt. If the volcano then erupts, the former sedimentary rock would be incorporated into the lava and solidify into igneous rock.


Are sedimentary rocks that form when minerals come out of a solution classified as porphyritic?

No. I believe they are called chemical precipitate sedimentary rocks. Yes, I'm sure they're called that. Absolutely! Porphyritic is a term usually applied to igneous rocks, having to do with mineral formation and rock texture.


Do all rocks come from a volcano?

No. Not directly at least. Volcanic rock is extrusive igneous rock. Sedimentary rock is formed from sediment weathered out of pre-existing rocks that has been deposited and turned back into stone. Some of this sediment can come from volcanic rocks.


Can sedimentary rocks come from other sedimentary rocks?

Yes, through the process of erosion, transportation, deposition, and lithification, sediments from existing sedimentary rocks can be weathered and broken down to form new sedimentary rocks. The cycle of sedimentary rock formation can involve the breakdown and reformation of older sedimentary rocks.

Related Questions

Which is older igneous or sedimentary?

Igneous rocks are typically older than sedimentary rocks. Igneous rocks form from the cooling and solidification of molten material (magma or lava), which usually happens before the formation of sedimentary rocks through processes like erosion, deposition, and compaction.


What is a sentence with igneous sedimentary and metamorphic?

Igneous, sedimentaty and metamorphic are all types of rocks. You would just write sentences to describe each, like "Igneous rocks come from volcanoes" and "Sedimentary rocks come from sediment."


Where sediment come from?

Sediments come from the erosion of igneous, sedimentary, and metamorphic rocks.


What forces are in the rock cycle?

Sedimentary rocks are formed when other rocks (igneous, metamorphic, or sedimentary) are weathered and eroded and their sediments are compacted and cemented together. Metamorphic rocks can be formed when heat and pressure is applied to any type of existing rock. Igneous rocks are formed when magma cools. The magma can be made up of melted rocks of any kind (sedimentary, igneous, or metamorphic). The cycle repeats itself all the time and all of the rocks can come from any other kind of rock.


Does the magnetite come from sedimentary rock metamorphic or igneous?

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Scientists divide rocks into groups based on what?

Rocks are grouped by how they are formed. There are 3 types of rocks. Sedimentary, Metamorphic, and Igneous rock. Sedimentary rocks are made from broken down rocks, called sediment, which come from all three rocks. Metamorphic rocks come from existing rocks that are changed by heat and pressure. The Igneous rocks are formed from magma that rose up to the surface, also known as lava. When the lava cools and hardens it forms igneous rocks. That is a rock cycle. Rocks are grouped by how they are formed. There are 3 types of rocks. Sedimentary, Metamorphic, and Igneous rock. Sedimentary rocks are made from broken down rocks, called sediment, which come from all three rocks. Metamorphic rocks come from existing rocks that are changed by heat and pressure. The Igneous rocks are formed from magma that rose up to the surface, also known as lava. When the lava cools and hardens it forms igneous rocks. That is a rock cycle.


What rocks are formed from molten rock that has solidified?

Igneous rocks, which come in many different forms.


Where does sedimentary rock come from originally?

A sedimentary rock is made from the products of the erosion of other rocks. These could be igneous, sedimentary or metamorphic rocks. If you wish to know the original rock from which sedimentary and metamorphic rocks came from, you have to go back to when the Earth formed. In this case, the answer would be an igneous rock.


Where did sediment come from?

Sedimentary rocks are formed from the erosion of different material from tops of mountains and hills. Sedimentary rocks are formed by the build up and ensuing consolidation of sediments into different types of rocks.


What kinds of formations are created when cools and hardens?

Igneous Rocks are formed. Obsidian is a volcanic glass, go to wikepidiea and search "list of rocks" and it will come up with all the different igneous, metamorphic, and sedimentary rocks and what they are.


How do igneous rock form to sedimentary rocks?

Sedimentary rock can be changed into igneous rock by undergoing melting and then solidification. At a subduction zone (at a convergent plate boundary, where one plate slides beneath another), layers of sedimentary rock will be assimilated into the mantle. Some areas may undergo enough heating to actually melt, especially if there is water or carbon dioxide trapped in the rock. If this rock later makes it to the surface and cools, it will become an igneous rock. Another area where sedimentary rock could be changed into igneous rock is on the interior of a composite volcano -- The heat and force of the magma could break off chunks of volcanic welded tuff, causing it to melt. If the volcano then erupts, the former sedimentary rock would be incorporated into the lava and solidify into igneous rock.


What rock or rocks could come just after quartzite in the rock cycle?

Schist and gneiss are common rocks that can form after quartzite in the rock cycle. Schist forms from the metamorphism of rocks like shale or mudstone, while gneiss forms from the high-grade metamorphism of granite or other rocks.