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Chemical Rock
Chemical sedimentary rocks are formed from the precipitation from, or evaporation of, water that is saturated with dissolved minerals. In addition, most clastic sedimentary rocks are also formed from the cementing together of sediment particles by the precipitation of minerals from water.
Clay is actually a description of sediment of a specific particle size. As such clay is not necessarily a rock. However when compacted and cemented clay forms claystone which is a sedimentary rock.
igneous rock
evaporites
hydrogenous sediment
not a hydrogenous sediment?
Chemical Rock
A Chemical Rock
sedimentary rock
A density current forms when more dense seawater moves toward less dense seawater.
A density current forms when more dense seawater moves toward less dense seawater.
Non-Clastic, or chemical, sedimentary rock is formed from dissolved minerals. These rocks are made of chemical sediments that have been dissolved from minerals. Solid minerals precipitate out of the solution in water. These minerals layer, and the water above them causes the pressure which forms the rock.
riptide
Density current
The key is the sediments. ... Biochemical sedimentary rocks are formed from organic processes that involve living organisms producing the sediments. These living organisms can be snails and clams whose discarded calcium carbonate shells can form limestone.
The ingredients in a sedimentary rock is sand and sediment because thats what forms it.