The many mounds and depressions came into clearer relief this spring with the release of
a new seafloor bathymetry map compiled from oil and gas industry surveys and assembled by the U.S. Bureau of Ocean Energy Management.
By combining older seafloor data and digital seismic data from earthquakes along with 4,500 kilometers (2,796 miles) of
new seafloor depth measurements, or bathymetry, collected in 2010, Legg and his colleagues were able to take a closer look at the structure of two of the larger seafloor faults in the Borderland: the Santa Cruz - Catalina Ridge Fault and the Ferrelo Fault.
There they would be able to observe several important processes — the formation of
new seafloor, volcanic eruptions, the movement of nutrients from deep to shallow waters, and earthquakes.
RAPID RETREAT
New seafloor data reveal that Køge Bugt (shown) and other fast - retreating glaciers in southeastern Greenland sit within deep fjords, allowing warm Atlantic Ocean water to speed up melting.
New seafloor data reveal that some fjords, such as the one beneath Mogens North, are deeper (solid black line) than previous simulations suggested (dashed pink line).
Not exact matches
The foundation of the research involved tracking the changes in ocean circulation in
new detail by studying three sediment cores extracted from the
seafloor of the Gulf of Mexico in 2010 during a scientific cruise.
A
new map of the surrounding
seafloor helps explain why: Many of the fastest - melting glaciers sit atop deep fjords that allow Atlantic Ocean water to melt them from below.
A study published Aug. 28, 2017, in the Proceedings of the National Academy of Sciences adds a
new dimension to the controversial decision to inject large amounts of chemical dispersants immediately above the crippled oil well at the
seafloor during the Deepwater Horizon disaster in 2010.
A
new observatory called ABISS that can transmit video and long - term chemical measurements at broadband speeds from the
seafloor using a system of flashing lights instead of a traditional tether.
Through the process of
seafloor spreading,
new ocean crust continually comes into being here.
OCEAN MOTION The 2011 tsunami that devastated Japan (forecast shown) was fueled by both the horizontal and vertical motion of the
seafloor,
new research suggests.
Even when you send packets as light pulses down fiber - optic cables thousands of miles long, repeaters buried every 20 miles or so on the
seafloor absorb incoming photons and transmit
new photons to the next repeater.
The key for Koblick is that archaeology could underwrite
new habitats, providing a money model for bases on the
seafloor.
If some of these larvae survive long enough to reach another hydrothermal vent, they may settle on the
seafloor, grow into adults, and colonize a
new vent.
The evidence comes from
seafloor spreading centers: sites throughout the ocean where plates of ocean crust move apart and magma erupts in between, building
new crust onto the plates» trailing edges.
Now that sunlight can penetrate the waters, microalgae will quickly begin to grow, providing an abundant food source to any
seafloor denizens — and an enticement to
new colonizers.
The team were able to draw these conclusions by analysing
new data from the chemical composition of the fossilised shells of sea surface and
seafloor organisms from that period, taken from drilling cores from the ocean floor in the South Atlantic.
We've reached the end of our
New Mexico road trip, and we have scoured the side of the road for long - dead sea creatures, found a shark tooth in an ancient
seafloor and tracked long - dead worms across fossilized mud.
Ocean - based wind turbines don't need to be firmly anchored to the
seafloor, according to a
new study.
The
new study supports the likelihood that these vertical fault zones have displaced the
seafloor in the past, which means they could send out tsunami - generating pulses towards the nearby coastal mega-city of Los Angeles and neighboring San Diego.
Analyses of a recently discovered type of hot vent ecosystem on the
seafloor suggest
new possibilities for how life evolved
A major
new survey of the
seafloor has found that even in the deepest ocean depths you can find bottles, plastic bags, fishing nets and other types of human litter.
The
new discoveries show that the formation 40 to 50 million years ago of the «Pacific Ring of Fire,» an active
seafloor zone along the perimeter of the Pacific Ocean, caused dramatic changes in ocean depth and volcanic activity and buckled the seabed of Zealandia, according to Dickens.
The footprints of long - gone glaciers and icebergs are now frozen in time in a stunning
new collection of images of Earth's
seafloor.
In the past, scientists had only noticed that plate activity contributes
new material and gases to the
seafloor.
More precisely monitoring dolphins with
seafloor recordings could provide
new insight into how these animals respond to environmental problems such as oil spills and the long - term effects of climate change.
Malnic was a mining journalist who had crossed to the other side: He was sitting on a claim to a patch of volcanic
seafloor off the coast of Papua
New Guinea.
«Hydrothermal siphon» drives water circulation through
seafloor:
New study explains previous observations of ocean water flowing through the
seafloor from one seamount to another.»
That suggests the tools let them gain access to a
new food source, perhaps by protecting their rostrums as they sift the
seafloor for bottom dwellers.
To untangle the impacts that these three climate stressors will have on
seafloor diversity in the future, the researchers examined existing published data and collected
new data on organisms living in deep - sea sediments in upwelling regions along continental margins, where the ocean and continental crusts meet along the
seafloor.
NSF is one of the major funders of marine research; its oceans office has spent some $ 350 million annually over the past few years, and the agency has played a major role in building costly
new ships, automated
seafloor observatories, and networks of instrumented buoys and floats.
But Jean - Arthur Olive, a geodynamicist at Columbia University and lead author of the
new paper, doubted that
seafloor topography would be sensitive enough to record such relatively rapid changes in magma supply.
The idea is that as they dug and wiggled, these early multicellular creatures — some were likely worms as long as 40 cm — exposed
new layers of
seafloor sediment to the ocean's water.
New NOAA - led research on tagged humpback whales in Stellwagen Bank National Marine Sanctuary reveals a variety of previously unknown feeding techniques along the
seafloor.
The
new model calculates the amount of free hydrogen gas produced and stored beneath the
seafloor based on a range of parameters — including the ratio of a site's tectonic spreading rate to the thickness of serpentinized rocks that might be found there.
However, if the
seafloor is already saturated with gas and the process takes place very quickly, the released gases make their way to the
seafloor, without forming
new hydrates,» says Dr. Karstens.
A
new paper by MBARI researcher Ken Smith and his colleagues shows that population booms of algae or animals near the sea surface can sometimes result in huge pulses of organic material sinking to the deep
seafloor.
When dozens of meters of
new sediment settle on the
seafloor, the solid compounds dissociate at the base of the hydrate stability zone, while
new hydrates can form at the upper end of the stability zone.
New Zealand scientists mapped the Havre volcano, a caldera nearly three miles (4.5 kilometers) across on the seafloor northeast of the North Island of New Zealand, using shipboard sonar instruments in 2002 and again immediately after the eruption in 2012, revealing the presence of new volcanic material on the seaflo
New Zealand scientists mapped the Havre volcano, a caldera nearly three miles (4.5 kilometers) across on the
seafloor northeast of the North Island of
New Zealand, using shipboard sonar instruments in 2002 and again immediately after the eruption in 2012, revealing the presence of new volcanic material on the seaflo
New Zealand, using shipboard sonar instruments in 2002 and again immediately after the eruption in 2012, revealing the presence of
new volcanic material on the seaflo
new volcanic material on the
seafloor.
On July 18, 2012, passengers on an airline flight over the Southwest Pacific Ocean glimpsed something unusual — a raft of floating rock known as pumice that indicated an underwater volcanic eruption had occurred on the
seafloor northeast of
New Zealand.
«A lot of research has shown that intrusions of warm water are responsible for melting ice along the polar coastlines and that these intrusions are steered by the shape of the
seafloor,» said Jamin Greenbaum, an oceanography and geology expert at the University of Texas, Austin, who was not involved with the
new study, in an email.
As head of a
new Emmy Noether junior research group funded by the German Science Foundation, Dr. Florian Scholz will continue to study the fluxes of iron and other micronutrients across the
seafloor in the coming years.
Massive releases of methane from arctic
seafloors could create oxygen - poor dead zones, acidify the seas and disrupt ecosystems in broad parts of the northern oceans,
new preliminary analyses suggest.
«Sunken logs create
new worlds for
seafloor animals.»
On oxygenated
seafloors, the first multi-cellular lifeform (possibly an eukaryotic alga) appears to have evolved by Year 2.4 billion as the 12 - centimeter or 4.7 - inch protoctist, Grypania (more from BBC News and
New Scientist).
Together with other Triassic layers these rocks — once a
seafloor — were now pushed up thousands of meters to become the dramatic high peaks of the
new - born Alps.
And during an expedition in the Atlantic Ocean, her team discovered a
new type of
seafloor vent.
The
new results suggest a huge source of heat must reside at the
seafloor of the ocean on Enceladus.
Recent discovery by Davy et al (2010) of kilometer - wide (ten 8 - 11 kilometer and about 1,000 1 - kilometer - wide features) eruption craters on the Chatham Rise
seafloor off
New Zealand adds further ammunition to the Methane Gun hypothesis.
The UCSB scientists are making
new contributions to this field of inquiry in their studies of
seafloor hydrothermal fluid discharge into the Earth's oceans, which has been occurring ever since the oceans first formed four billion years ago.