Sedimentary Rocks
Sedimentary rocks are classified based on the origin of the sediments, divided into three groups: Detrital Rocks, formed by the compaction and cementation of fragments of other rocks, such as ballast, sand and clay; Chemiogenic Rocks, originated by the precipitation of substances dissolved in water, such as limestone and rock salt; and Biogenic Rocks, which have biological origin, accumulating remains of living beings or products of their activity, such as coal and conquiferous limestone. Each group represents a distinct training process.
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