Seabed
hideThe seabed (also known as the seafloor, sea floor, 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. The seabed has been explored by submersibles such as Alvin and, to some extent, scuba divers with special apparatuses. The process that continually adds new material to the ocean floor is seafloor spreading and the continental slope.
For more information about Seabed, read the full article at
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News tagged with ocean floor
Rich Ore Deposits Linked to Ancient Atmosphere
Space & Earth / Earth Sciences
Nov 19, 2009 |
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(PhysOrg.com) -- Much of our planet's mineral wealth was deposited billions of years ago when Earth's chemical cycles were different from today's. Using geochemical clues from rocks nearly 3 billion years old, a group of ...
A glimpse at the Earth's crust deep below the Atlantic
Space & Earth / Earth Sciences
Nov 12, 2009 |
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Long-term variations in volcanism help explain the birth, evolution and death of striking geological features called oceanic core complexes on the ocean floor, says geologist Dr Bram Murton of the National ...
Earth's early ocean cooled more than a billion years earlier than thought (w/ Video)
Space & Earth / Earth Sciences
Nov 11, 2009 |
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(PhysOrg.com) -- The scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analyzed isotope ratios in 3.4 ...
Volcanic eruptions may split Africa: scientists
Space & Earth / Earth Sciences
Nov 03, 2009 |
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Volcanic activity may split the African continent in two owing to a recent geological crack in northeastern Ethiopia, researchers said on Tuesday.
Computer model documents the history of the West Antarctic ice sheet
Space & Earth / Earth Sciences
Aug 28, 2009 |
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(PhysOrg.com) -- One major threat of planetary warming is the melting of the great polar ice sheets, and the resulting rise in global sea level. Particularly worrisome to researchers is the fragility of the ...
Water in Earth's mantle may be associated with subduction
Space & Earth / Earth Sciences
Aug 19, 2009 |
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A team of scientists from Oregon State University has created the first global three-dimensional map of electrical conductivity in the Earth's mantle and their model suggests that that enhanced conductivity ...
Digging for answers to climate change
Space & Earth / Earth Sciences
Jul 19, 2009 |
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Forty miles off the Jersey Shore, an international team of scientists is grappling with a worrisome phenomenon: The oceans are slowly rising. The researchers are not studying the sea itself. Living for weeks at a time on ...
Wind + water = untapped energy: An abundance of power exists above Earth's oceans, study finds
Space & Earth / Earth Sciences
Jun 30, 2009 |
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(PhysOrg.com) -- Wind energy over the planet's oceans is a vastly underutilized renewable resource, according to UC Irvine researchers.
Geographic profiling applied to track hunting patterns of white sharks in South Africa
Jun 22, 2009 |
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Predation is one of the most fundamental and fascinating interactions in nature, and sharks are some of the fiercest predators on Earth. However, their hunting pattern is difficult to study because it is rarely ...
Scientists document fate of huge oil slicks from seeps at coal oil point
Space & Earth / Earth Sciences
May 13, 2009 |
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Twenty years ago, the oil tanker Exxon Valdez was exiting Alaska's Prince William Sound when it struck a reef in the middle of the night. What happened next is considered one of the nation's worst environmental ...
Disappearing act of world's second largest fish explained
May 07, 2009 |
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Researchers have discovered where basking sharks - the world's second largest fish - hide out for half of every year, according to a report published today in Current Biology. The discovery revises scient ...
Sea Urchins' Digging Teeth are Designed to Stay Sharp
May 04, 2009 |
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(PhysOrg.com) -- Sea urchins dig themselves hiding holes in the limestone of the ocean floor using teeth that don’t go blunt. Weizmann Institute scientists have now revealed their secrets, which might give engineers insights ...
In Ocean's Depths, Heat-Loving 'Extremophile' Evolves a Strange Molecular Trick
Apr 30, 2009 |
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(PhysOrg.com) -- Making its home near extreme temperatures of thermal vents on the ocean floor, the organism Methanopyrus kandleri harbors a molecular secret that intrigues evolutionary biologists and even ...
Tahiti corals clue to 'dynamic' glaciers
Space & Earth / Earth Sciences
Apr 24, 2009 |
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(PhysOrg.com) -- Fossilised corals from tropical Tahiti show that the behaviour of ice sheets is much more volatile and dynamic than previously thought, a team led by Oxford University scientists has found.
Exploring hidden life’s abundance
Space & Earth / Earth Sciences
Feb 12, 2009 |
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(PhysOrg.com) -- Two miles below the surface of the Sargasso Sea lies a depression in the Earth’s crust filled with sediment and, scientists believe, teeming with life — exotic, microscopic, and very likely ...
