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Sedimentary rocks cover 75% of the Earth's surface. Four basic processes are involved in the formation of a clastic sedimentary rock: weathering (erosion)caused mainly by friction of waves, transportation where the sediment is carried along by a current, deposition and compaction where the sediment is squashed together to form a rock of this kind. Sedimentary rocks are formed from overburden pressure as particles of sediment are deposited out of air, ice, or water flows carrying the particles in suspension.
Transcript of sedimentary cycle Sedimentary Cycle How rocks are formed the biogeochemical cycle in which materials primarily are moved from land to sea and back again What is sedimentary cycle? the process by which sediment falls to the bottom of water, becomes rock, then is weathered to form sediment again A series of related processes and conditions appearing repeatedly in the same sequence in a sedimentary deposit.