What Is An Example Of A Sedimentary Rock

Examples of chemical sedimentary rock each paragraph below details a common type of chemical sedimentary rock.

The specimen shown above is about two inches five centimeters across. Some of the more common types of sedimentary rock include sandstone shale limestone and coal. Breccia is made up of angular pebbles cemented together. Some good examples of organic sedimentary rocks can include some forms of limestone some forms of dolomite coal and shale.

Common chemical sedimentary rocks include oolitic limestone and rocks composed of evaporite minerals such as halite rock salt sylvite baryte and gypsum. Orthochemical sedimentary rocks on the other hand consist of dissolved constituents that are directly precipitated as solid sedimentary rock and thus do not undergo transportation. Interesting information about the rock is also given. Other sedimentary rocks this fourth miscellaneous category includes volcanic tuff and volcanic breccias formed by deposition and later cementation of lava fragments erupted by volcanoes and impact breccias formed after impact events.

Limestone is one of. Hematite shown above is the most common sedimentary iron ore mineral. When the chemical rich water makes its way into a cave the water evaporates and leaves behind calcium carbonate on the ceiling forming a stalactite or on the floor of the cave creating a stalagmite. In all cases debris organic material or minerals slowly form into what are typically soft dry and porous rock types.

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Carbonate rocks are made mostly of carbonate minerals coming from of bioclasts created by calcareous organisms such as corals or mollusks. Iron ore is a chemical sedimentary rock that forms when iron and oxygen and sometimes other substances combine in solution and deposit as a sediment. An example of a sedimentary rock which is by definition composed of many smaller rocks. Examples of clastic sedimentary rocks conglomerate is made up of rounded pebbles cemented together.

Examples are calcareous or siliceous shell fragments and oöids which are concentrically layered spherical grains of calcium carbonate. Photo courtesy of alamy stock photo. Examples of sedimentary rocks.