Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment often formed when weathering and erosion break down a rock into loose material in a source area. The material will then be transported from the source area to the area of deposition. The type of sediment that is transported to a place depends on the geology of the hinterland (the source area of the sediment). However, some sedimentary rocks, like evaporites, are composed of material that formed at the place of deposition. The nature of a sedimentary rock therefore not only depends on sediment supply, but also on the sedimentary depositional environment in which it formed.
From the erosion and resedimentation of igneous, metamorphic or sedimentary rocks.
Limestone:
1. Formed from mostly shells
2. Formed when elements that were dissolved in water come out of the solution.
Well - their name indicates that they were formed by sedimentation processes. Often under the oceans. But depending on the region, there may be notable regional differences.
3
lava cooling
sediment
Rocks are classified by they way they are formed. There are three main classes of rocks: igneous, metamorphic and sedimentary rocks.
sedimentary,metormorphic , igneous .........
Both organic sedimentary (like coal) and chemical sedimentary (like rock salt) rocks are not composed of particles of other rocks, as are the bulk of sedimentary rocks classified as clastic (shale, sandstone, conglomerate).
1. Organically. 2. Mechanically. and 3. Chemically.
lava cooling
Three main ways and are classified accordingly. Igneous rocks form from molten material called magma.
Three main ways and are classified accordingly. Igneous rocks form from molten material called magma.
587i
Biologically, Chemically and Mechanically.
There are different ways sedimentary rocks are formed. Many sedimentary rocks are made from the broken pieces and particles of other rocks, [which is a reason why the name was given to these types of rocks (sediment)] and these bits get cemented together. These types of sedimentary rocks are called clastic sedimentary rocks. Chemical sedimentary rocks are another type that comprise of mineral crystals, like gypsum and halite. Lastly, organic sedimentary rocks are made of, well...... organic materials. They are made of the remains of once living organisms and contain the remains of living creatures such as clam shells, plankton skeletons, dinosaur bones, and plants.
sediment
Sedimentary rocks are formed as a result of deposition of materials at the surface of the Earth or within water bodies.
Sedimentary rocks are made up of materials that were once part of another rock. Most sediments are deposited on ocean floors or at the bottom of rivers and lakes.Clastic sedimentary rocks form from layers of sediments. Pressure causes the water around the sediments to be squeezed out and the sediments are cemented together.
pieces of rock
Rocks are classified by they way they are formed. There are three main classes of rocks: igneous, metamorphic and sedimentary rocks.