Ocean have been dominating earth, almost 70% of earth covered by water. This large amount of waters are believed comes from eruption of volcano around four billion years ago.
The geology of the sea floor was largely unknown until the last half of the twentieth century, when the rapid advance of new technologies allowed geologists to study the sea floor in great detail.
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The process of weathering alters rocks at the earth’s surface and breaks them down over time into fine-grained particles of sediment and soil . Weathering is the result of the interactions of air, water, and temperature on exposed rock surfaces and prepares the rock for erosion.
Erosion is the movement of the particles by ice, wind, or water. The particles are then transported by that agent until they are deposited to form sedimentary deposits, which can be later eroded again or transformed into sedimentary rocks. The weathering of the sediment grains continues during erosion and transportation. Weathering is generally a long, slow process that is continuously active at the earth’s surface.
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