HW Minting Company “Seabed” 1 ounce Silver Round since 2008 with limit, 20 or more come with sealed tube. From the Galaxy theme we doubled our creative output and discovered a well-defined idea, the Seabed. The mystery of Galaxy brought us to imagine the secret of Ocean. These rounds are .999-fine Silver.
Three quarters of the planet Earth is covered by water. A majority of the planet’s solid surface is abyssal plain, at depths between 4000 and 5500 m (13,000 to 18,000 ft) below the surface of the oceans.
Seabed, also known as the seafloor or ocean floor is the bottom of the ocean. At the bottom of the continental slope is the continental rise, which is caused by sediment cascading down the continental slope. People have explored the oceans for thousands of years. Until recently, the ocean floor had not been studied and much was unknown about the deep oceans. Studying the ocean floor is difficult; conditions are very harsh in the deep ocean. First, it is dark since sunlight does not penetrate far below the surface. Second, the water is cold, only a few degrees above freezing. Finally, there is tremendous pressure due to the mass of the water pushing down from above. Because of the darkness, cold, and extreme pressure, scientists have had to develop technology to enable them to study the deep ocean floor. That technology includes sonar, scuba, submersibles, satellites, remote underwater manipulators, and gravity mapping.
When scientists were able to map the ocean floor, they discovered something surprising. The bottom of the ocean was not a flat, sandy plain stretching between the continents, as many people once thought. In fact, the ocean floor was rocky and dramatically uneven. Many previously unknown features of the seabed were discovered.
The ocean floor is home to many unique communities of plants and animals. Most of these marine ecosystems are near the water surface, such as Coral reefs, like nearly all complex living communities; depend on solar energy for growth. The sun’s energy penetrates at most only about 300 m below the surface of the water. The relatively shallow penetration of solar energy and the sinking of cold, subpolar water combine to make most of the deep ocean floor a frigid environment with few life forms.
Mussels, shrimp, crabs, snails, fish, huge worms and many other lifeforms have been discovered since the first dives to vents on the ocean floor. Most of these organisms were new to science, and to this day many new species are discovered each year.
Product Number: SEAC409