News tagged with ocean floor
Bacteria alive (more or less) in 86-million-year-old seabed clay
(Phys.org) -- A new study by scientists from Denmark and Germany has found live bacteria trapped in red clay deposited on the ocean floor some 86 million years ago. The bacteria use miniscule amounts of oxygen ...
May 18, 2012 |
4.5 / 5 (15) |
10
|
Thawing permafrost 50 million years ago led to extreme global warming events
In a new study reported in Nature, climate scientist Rob DeConto of the University of Massachusetts Amherst and colleagues elsewhere propose a simple new mechanism to explain the source of carbon that fed a ...
Space & Earth / Earth Sciences
Apr 04, 2012 |
4.3 / 5 (28) |
47
|
New exploration shows parts of North Atlantic seabed were once above sea level
(PhysOrg.com) -- Using data obtained from oil searching contractors, researchers have discovered that parts of what is now the ocean floor off the northern coast of Scotland, were at one time raised up enough ...
Space & Earth / Earth Sciences
Jul 12, 2011 |
4.6 / 5 (11) |
5
|
Unusual earthquake gave Japan tsunami extra punch
The magnitude 9 earthquake and resulting tsunami that struck Japan on March 11 were like a one-two punch – first violently shaking, then swamping the islands – causing tens of thousands of deaths ...
Space & Earth / Earth Sciences
May 24, 2011 |
5 / 5 (8) |
2
|
Geophysicists claim conventional understanding of Earth's deep water cycle needs revision
A popular view among geophysicists is that large amounts of water are carried from the oceans to the deep mantle in "subduction zones," which are boundaries where the Earth's crustal plates converge, with ...
Space & Earth / Earth Sciences
Oct 18, 2010 |
4.9 / 5 (17) |
3
|
Triple whammy triggered Samoa tsunami (Update 2)
A tsunami that hit the Pacific islands of Samoa and Tonga last year was generated by three earthquakes unleashed by a seismic mechanism that has never been observed before, scientists said on Wednesday.
Space & Earth / Earth Sciences
Aug 18, 2010 |
4 / 5 (14) |
1
|
Small fish exploits forbidding environment
Jellyfish moved into the oceans off the coast of southwest Africa when the sardine population crashed. Now another small fish is living in the oxygen-depleted zone part-time and turning the once ecologically ...
Jul 15, 2010 |
4.9 / 5 (11) |
0
|
New insights into volcanic activity on the ocean floor
New research reveals that when two parts of the Earth's crust break apart, this does not always cause massive volcanic eruptions. The study, published today in the journal Nature, explains why some parts ...
Space & Earth / Earth Sciences
Jun 16, 2010 |
3.9 / 5 (7) |
1
|
Arctic ice at low point compared to recent geologic history
Less ice covers the Arctic today than at any time in recent geologic history. That's the conclusion of an international group of researchers, who have compiled the first comprehensive history of Arctic ice.
Space & Earth / Earth Sciences
Jun 02, 2010 |
3.6 / 5 (23) |
8
|
China looks to 'combustible ice' as a fuel source
(PhysOrg.com) -- Buried below the tundra of China’s Qinghai-Tibet Plateau is a type of frozen natural gas containing methane and ice crystals that could supply energy to China for 90 years. China discovered ...
Technology / Energy & Green Tech
Mar 12, 2010 |
4.7 / 5 (23) |
13
|
Earth's early ocean cooled more than a billion years earlier than thought (w/ Video)
(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 ...
Space & Earth / Earth Sciences
Nov 11, 2009 |
4.3 / 5 (12) |
1
Water in Earth's mantle may be associated with subduction
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 ...
Space & Earth / Earth Sciences
Aug 19, 2009 |
4.3 / 5 (10) |
3
In Ocean's Depths, Heat-Loving 'Extremophile' Evolves a Strange Molecular Trick
(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 ...
Apr 30, 2009 |
5 / 5 (12) |
3
Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling
(PhysOrg.com) -- The evolutionary history of diatoms -- abundant oceanic plankton that remove billions of tons of carbon dioxide from the air each year -- needs to be rewritten, according to a new Cornell ...
Biology /
Jan 08, 2009 |
4.5 / 5 (13) |
1
Mars Express radar gives strong evidence for former Mars ocean
(PhysOrg.com) -- ESA's Mars Express has returned strong evidence for an ocean once covering part of Mars. Using radar, it has detected sediments reminiscent of an ocean floor within the boundaries of previously ...
Space & Earth / Space Exploration
Feb 07, 2012 |
4.3 / 5 (7) |
3
|
Seabed
The 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
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
