EARTH SCIENCE
SEDIMENTS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Compaction and volume
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Compaction and solution
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Pressure and magnetism
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Compaction and cementation
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Detailed explanation-1: -Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.
Detailed explanation-2: -Compaction is when sediment is pushed together by the weight of water and other sediment pushing down on it. Cementation is the last stage in the cycle and happens when sediment is glued together by minerals such as silica and calcium carbonate as the minerals infiltrate pore space between compacted sediment.
Detailed explanation-3: -Lithification. Lithification is the changing of sediments into rock. There are two processes involved in this change. They are compaction and cementation.
Detailed explanation-4: -Sedimentary rocks are those formed from the compaction and cementation of fragments of pre-existing rocks called clasts, or plant and animals remains.
Detailed explanation-5: -Weathering. The various mechanical and chemical process that cause exposed rock to decompose. Erosion. The process by which of the of the surface of the earth is worn away by the action of water, glaciers, wind, waves, etc. Deposition. The act or process of decomposing. Lithification. Compaction.