Nicho Evans
Professor Petretto
Chronicles of the Sea
7 December 2015
Exploring the Deep Sea Pitch black, dead quiet and seemingly desolate, the deep sea resembles that of a far off alien world. Until recent advancements in technology, little to none has been known about the deep sea. Far beyond the natural reach of humans, only highly expensive submersibles have visited the ocean’s deepest and darkest locations. In the Pacific Northwest, an eerie 7-mile venture underwater will take you to the deepest spot on the planet, Challenger Deep in the Mariana Trench. Challenger Deep was given it’s name after the British survey ship, Challenger II, which recorded the location’s depth with an echo-sounder in 1951 (About the Mariana). Although the Challenger II is recognized as the first vessel to obtain a near accurate depth recording, Mariana Trench was actually first discovered by the H.M.S Challenger’s expedition in the 1870’s (About the Mariana).
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Each of these layers decreases in sunlight and temperature as depth increases. On average, sunlight fades away in seawater at approximately 200 meters deep. With no sunlight to heat the water, temperatures plummet at depth, leaving the water at Challenger Deep just a few degrees above freezing. On top of having no sunlight and near freezing conditions, the deep sea also possesses pressure unlike anywhere else on earth. Opposite to climbing a mountain and experiencing a decrease in pressure, in the ocean pressure increases the deeper one goes, due to the weight of the water above. At Challenger Deep, the weight of nearly 7 miles of water above causes the pressure to reach 8 tons per square inch (About the Mariana). In spite of these brutal conditions, life still has found a way to thrive at these great
9. Oceanward of the oceanic trench, the ocean bottom first rises and then levels off to a depth of approximately 3900 m, making the deepest part of the ocean trench about [(1400)(2400)(3500)] m below the bottom of the abyssal plain ocean bottom west of the trench.
they have also tested how far under a onely titanium submarine without imploding. They have also don other experiments
A diver descending to a depth of 10 meters, is equivalent to the entire 150km of atmospheric air (1 ATA). This is due to water being much denser than air. If the diver were to descend another 10 meters, the water will exert a further pressure, equal to another atmosphere, 2 ATA.
Astonishingly, Did you know that we have better maps of the moon than we do of the ocean? (#7) It’s true! Scientists are working to make drones to explore the deep sea. Ocean Exploration is a developing science that incorporates the use of marine biology and drone technology. Ocean Exploration technology will be an overall benefit to society because 1. exploring the ocean is easier than before and 2. ocean exploration can help with monitoring the deep sea.
The deepest depths of the ocean are unfathomable, no one knows what creatures lurk down there.
According to the cold/hot 2 lens, Brooke Jarvis reading, “The Deepest Dig” is partially good. However, later in the reading she could have done a better job if she would have mention the effects that could occurred due to the process of the seafloor mining complexity of the system. But what the okay part that Jarvis does is mentioning the activity of the sea floor mining tool, “Nautilus’s plan for Solwara 1, which the company intends to begin mining in 2017, is to use two large robots excavators to remove chimneys and the first 160 feet of the seafloor” (127.) Jarvis does a great job here telling us about the Solwara 1 system of this tool how is going to do a part of the seafloor
Robert Ballard was one of the great explorers who discovered numerous secrets about the deep sea and science while encountering new creatures and natural resources as he explored and exchanged new ideas of using technology and incorporating it into his discoveries. Ballard is known for two of his most famous findings: the shipwreck of the Titanic and the Bismarck. The ideas of using technology to assist with his findings helped him create his own equipment with his team to find out more about the deep sea. The idea came from previous discoveries where he saw the Earth’s curst crack and how it affected marine life, geology and geophysics. This led him to become intrigued and continue on to more research to show the world the mysteries of the ocean. Ballard’s exploration of the deep sea provided encounters that led to a better understanding of plate tectonics and the environment, the use of technology to find historical treasures, and the preservation of history left behind in the deep sea.
The Puerto Rico Trench is the deepest part of the Atlantic Ocean, with water depths exceeding 8,400 meters which is actually the deepest point in the Atlantic Ocean and the deepest point not in the Pacific Ocean. In the Pacific trenches are located in places where one tectonic plate subducts or slides under another one. However, in the Atlantic trenches such as this one is formed
Because of how hot magma is, it would take more than negative three thousand degrees celsius to cool the magma flow instantaneously. Another factor that contributes to this situation is when they were diving into the ocean the pressure from the trench, because it is more that 30,000 feet down, would cause their titanium ship or vessel to begin to crush. The pressure is so great that even unmanned robots are unable to survive the vast amounts of pressure within the ocean. (http://www.deepseachallenge.com/the-expedition/mariana-trench/
The deepest part of the Atlantic Ocean is the Puerto Rico Trench, which is between the Atlantic Ocean and the Caribbean Sea. The middle of the Atlantic Ocean is the Mid-Atlantic ridge, which is not the deepest part of the ocean, therefore makes the statement of my friend incorrect. Ocean floor can be divided into three different parts, which includes the continental margins, deep-ocean basins, and the mid-ocean ridge. Continental margins are usually found in the shallow areas that are closer to the continents, and with the Atlantic Ocean, it is at the East Coast of the US. Deep-ocean basins are the deep water areas and are further away from the continents, and it is found between the continental margin in the East Coast and the Mid-Atlantic
The Mariana trench is a deep mystery. We still don’t know what lays beneath the surface of this unknown land. Holdbacks in our society’s technology prevents us from exploring these wonders. If we were able to acquire these tools, how would we approach the situation?
Humans have tested our diving limits ever since we learned of them. With researchers like Captain George F. Bond and Elihu Thompson leading the charge to exceed limit after limit and dive deeper into the ocean depths.
Forty-six years later, May 8, 1991, a computer-controlled submarine scanned the ocean floor for sunken galleons. On this day, the crew of the Deep Sea would be unsuccessful in their search for galleons. Instead, 750 feet below the surface of the ocean, they would discover the outline of an
Deepwater Horizon was an offshore drilling rig built in 2001 in South Korea by Hyundai Heavy Industries. In September 2009, the rig drilled the deepest oil well in history with a vertical depth of 35,050 feet.
The deep sea is a dark and mysterious place. So little is known about the deep sea.