erosion, depsotion, compaction and cementation
Some sedimentary rock is formed this way; chemical sedimentary rock formed from evaporites, like rock salt, and rock gypsum.
The way in which they were formed.
Igneous rocks are formed from the cooling of molten lava or magma. Sedimentary rocks are formed by the deposition and compaction of sediment grains or by their chemical precipitation in water. For more information please see the related link.
Clastic rocks are sedimentary rocks formed from pre-existing fragments of minerals. Fossiliferous rocks are formed in the same way, except that they contain fossils.
Understand that metamorphic rocks are those that have changed in some way by heat or pressure or both. Sedimentary rocks are formed from sediments and igneous rocks are formed by fire. When these rocks change again, they become metamorphic. Marble is one type of metamorphic rock.Look at the way the grain are formed. In schist rocks, you can see that the layers and the grains all go the same way. Warning Metamorphic rocks are difficult to classify because different amounts of heat or pressure to the same rock can look different.
No, because a sedimentary rock is formed from pieces of other rocks.
Some sedimentary rock is formed this way; chemical sedimentary rock formed from evaporites, like rock salt, and rock gypsum.
The way in which they were formed.
Igneous rocks are formed from the cooling of molten lava or magma. Sedimentary rocks are formed by the deposition and compaction of sediment grains or by their chemical precipitation in water. For more information please see the related link.
Clastic rocks are sedimentary rocks formed from pre-existing fragments of minerals. Fossiliferous rocks are formed in the same way, except that they contain fossils.
The precipitation of minerals forms chemical sedimentary rocks. Examples include calcite deposits in vesicles in igneous rocks like pumice. The definition may be extended to include rocks formed by evaporation. Mineral Gypsum is formed this way.
The difference of metamorphic rocks from igneous and sedimentary rocks is on the way these rocks are formed. Igneous rocks form when magma cools down and becomes solid while sedimentary rocks form due to erosion and weathering of the Earthâ??s material, whereas, metamorphic rocks are formed as a result of rock transformation called metamorphism.
Basically a bunch of rocks come together( are pressed together by heat and pressure) in a process called Lithification , those rocks can be either Sedimentary or Igneous rocks.
Rocks are classified by they way they are formed. There are three main classes of rocks: igneous, metamorphic and sedimentary rocks.
Understand that metamorphic rocks are those that have changed in some way by heat or pressure or both. Sedimentary rocks are formed from sediments and igneous rocks are formed by fire. When these rocks change again, they become metamorphic. Marble is one type of metamorphic rock.Look at the way the grain are formed. In schist rocks, you can see that the layers and the grains all go the same way. Warning Metamorphic rocks are difficult to classify because different amounts of heat or pressure to the same rock can look different.
Metamorphic rocks are made from cooling lava, Igneus rocks are made by heat and presure, and Sedimentary rocks are made by sand and/or other tiny broken off peaces of rocks being presurised together forming one single rock
Sedimentary rocks change to metamorphic the same way any other rock would: through heat and pressure.