Clastic sedimentary rock deposits are classified primarily based on:Group of answer choicesChemical compositionParticle sizeExtent of lithificationType of source material
Question
Clastic sedimentary rock deposits are classified primarily based on:Group of answer choicesChemical compositionParticle sizeExtent of lithificationType of source material
Solution
B. Particle size
Clastic sedimentary rocks are primarily classified based on particle size. These rocks are made up of fragments, or clasts, of other rocks and minerals. The size of these clasts can vary greatly, from tiny particles of clay to large boulders. The names of different types of clastic sedimentary rocks reflect these size differences. For example, conglomerates are made of large clasts, sandstones are made of sand-sized clasts, and shales are made of tiny clay-sized clasts. While factors like chemical composition, extent of lithification, and type of source material can also be important, they are secondary to particle size in the classification of clastic sedimentary rocks.
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