According to the Earth Science Reference Tables, sedimentary rocks formed by compaction and cementation of land-derived sediments are classified on the basis ofparticle size composition type of cement rate of formation
Question
According to the Earth Science Reference Tables, sedimentary rocks formed by compaction and cementation of land-derived sediments are classified on the basis ofparticle size composition type of cement rate of formation
Solution
Sedimentary rocks formed by compaction and cementation of land-derived sediments are classified based on particle size and composition.
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Particle Size: The size of the particles that make up the sedimentary rock can range from microscopic clay to huge boulders. Their size is determined by the process that led to their formation. For example, sandstone is made up of sand-sized particles, while conglomerate is made up of larger, gravel-sized clasts.
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Composition: The composition of sedimentary rocks can tell us about the original source material and the environment of deposition. For example, a limestone is composed mostly of calcite, indicating it was formed in a marine environment.
The type of cement and rate of formation are not typically used to classify sedimentary rocks. The cement, or the material that binds the sediment together, can vary, but it does not change the classification of the rock. Similarly, the rate of formation can influence the characteristics of the rock, but it is not a classification criterion.
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