The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more. Little or no light penetrates this part of the ocean and most of the organisms that live there rely for subsistence on falling organic matter produced in the photic zone. For this reason scientists once assumed that life would be sparse in the deep ocean but virtually every probe has revealed that, on the contrary, life is abundant in the deep ocean.
In 1960 the Bathyscaphe Trieste descended to the bottom of the Mariana Trench near Guam, at 35,798 feet or 6.77 miles (10,911 meters), the deepest known spot in any ocean. If Mount Everest (8,848 metres) were submerged there, its peak would be more than a mile beneath the surface. The Trieste was retired and for a while the Japanese remote-operated vehicle (ROV) Kaikō was the only vessel capable of reaching this depth. It was lost at sea in 2003. In May and June 2009, the hybrid-ROV (HROV) Nereus returned to the Challenger Deep for a series of three dives to depths exceeding 10900 meters.
To gobble up fish, squid and crustaceans that live more than 1,970 feet deep in the ocean, Risso's dolphins 'drill' through the water using a twisting dive technique ... To gobble up fish, squid and crustaceans that live more than 1,970 feet deep in the ocean, Risso's dolphins (pictured) 'drill' through the water using a twisting dive technique.
10 (Xinhua) -- New Zealand scientists are preparing to drill a kilometer deep into the ocean floor below the Antarctica's largest Ross Ice Shelf to discover if cutting greenhouse gas emissions can help avoid catastrophic melt of the ice on the continent ... ocean and starts to float.
... ocean basins, major biodiversity crisis, and massive changes in wind and precipitation patterns ... In the study, published this week in Nature Communications, the researchers analyzed deep sea sediments obtained by the Ocean Drilling Program (ODP) from offshore Antarctica.
The story follows a group of workers aboard Kepler 822—an underwater drilling site at the bottom of the Mariana Trench (the deepest oceanic trench on Earth) ... During Tian Industries' exploration, they drilled into something until they hit a temporal pocket at the bottom of the ocean.
An anonymous reader quotes a report from The New York Times ... This extinction event transpired in the world's oceans, and decimated shark populations ... In 2015, Dr ... The reddish clay, extracted from two sediment cores that had been drilled deep into the PacificOcean seafloor, contained fish teeth, shark denticles and other marine microfossils ... Dr ... Dr ... .
"And this could have major implications for the deep ocean carbon cycle." ... Deep under the ocean, microbes are active and poised to eat whatever comes their way (2021, April 28) retrieved 28 April 2021 from https.//phys.org/news/2021-04-deep-ocean-microbes-poised.html.
Deep ocean sea beds could be the answer to providing electric vehicles with the materials needed to make their batteries ... He claims sourcing the metals from the deep ocean will have a lower environmental impact than taking them from land. “We don’t have to drill or blast to find them.
Ocean seismic data came in showing quakes very deep in the ocean trenches, and cores drilled into the deep ocean floor showed these trenches were very hot compared to surrounding ocean floor cores ...Magnum up-swellings in the mid-ocean ridges create new ocean floor, and at deep ocean trenches, old lithosphere sinks back into the Earth.
Beneath the cold, dark depths of the Arctic ocean sit vast reserves of methane ... In the Arctic Ocean today, ice sheets exert pressure on the ground below them ... To reach that record, Dessandier and the team needed to drill a deep core off the western coast of Svalbard, a Norwegian archipelago in the Arctic Ocean.
They wanted to reach the Moho by drilling a deep hole at the bottom of the ocean — a project that journalists compared to a moon shot at the time ...The InternationalOcean Drilling Program , which coordinates deep sea drilling projects all over the world, has a long-term goal of getting a cross section of the Moho.