Which of the following best describe the 3 different types of sedimentary rocks? Clastic, organic and chemicalChemical, physical and clasticPhysical, chemical and fossilsClastic, fossils and stones
Question
Which of the following best describe the 3 different types of sedimentary rocks? Clastic, organic and chemicalChemical, physical and clasticPhysical, chemical and fossilsClastic, fossils and stones
Solution
The best description for the 3 different types of sedimentary rocks is Clastic, organic and chemical.
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Clastic sedimentary rocks are formed from the accumulation of clasts: small pieces of broken down rocks. These clasts are transported by water, wind, ice, and then deposited. Examples include sandstone and shale.
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Organic sedimentary rocks are formed from the accumulation of any animal or plant debris such as shells and bones. These organic materials pile up over time to form rocks like coal and some types of limestone.
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Chemical sedimentary rocks are formed when minerals, dissolved in water, begin to precipitate out of solution and deposit at the base. Examples include rock salt and some types of limestone.
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