Fig. 1.3. OLP 2. Praia do monte Clérigo, Algarve, Portugual
Image adapted from Wikipedia, courtesy of Geerd-Olaf Freyer
Fig. 1.3. OLP 2. Praia do monte Clérigo, Algarve, Portugual
Image adapted from Wikipedia, courtesy of Geerd-Olaf Freyer
Many earth materials and biogeochemical cycles originate in the ocean (Fig. 1.3). The ocean is the largest reservoir of the rapidly cycling carbon on Earth.
<p>Erosion—the wearing away of rock, soil and other biotic and abiotic earth materials—occurs in coastal areas as wind, waves, and currents in rivers and the ocean and the processes associated with plate tectonics move sediments. Most beach sand (tiny bits of animals, plants, rocks, and minerals) is eroded from land sources and carried to the coast by rivers; sand is also eroded from coastal sources by surf. Sand is redistributed seasonally by waves and coastal currents.</p>
<p>The ocean is the largest reservoir of rapidly cycling carbon on Earth. Many organisms use carbon dissolved in the ocean to form shells, other skeletal parts, and coral reefs.</p>