Sentences with phrase «sea floor at»

Actually there were 4 geologists who found the magnetic anomalies on the sea floor at spreading ridges that set the stage for plate tectonics.

This is a very shallow reef network with a sandy sea floor at around 14m with the reef rising to a couple of metres below the surface.

Moored to the sea floor at Pulau Gaya, Borneo Reef World is just a 30 minute boat trip from Kota Kinabalu.

The microbe was isolated from the sea floor at the base of a «black smoker» chimney in the Gulf of California.

After taking the samples back to the lab, the team sterilized the outside of the rocks, carved away their outer layers, then incubated the exposed samples in 65 °C waters similar to those infiltrating the sea floor at the site — poor in oxygen but rich in chemicals such as dissolved hydrogen, sulfates, acetates, methanol, and dimethyl sulfide.

A unique video has captured a surprise swarm of red crabs on the sea floor at the Hannibal Bank seamount off the Pacific coast of Panama.

Since the spill began, clean - up crews have deployed over a million litres of dispersant on the surface and are now testing the chemicals on the sea floor at the source of the leak.

Before, during and after the PETM, these sediments were laid down on the sea floor at the edge of the Atlantic Ocean, at depths of ~ 1000m, on the boundary between the continents and the open ocean.

A gooey mat of microbes covered the sea floor at the time, and on that blanket lived a variety of enigmatic animals whose bodies resembled thin, quilted pillows.

Not exact matches

At other sites, boats dragging anchors and nets — or just scraping along the sea floor — have damaged or destroyed reefs.

The team were «amazed to discover this cluster of knolls» while they were scanning the sea floor, Dr Robin Beaman, Geoscience professor at James Cook University and an author of the study, said in a statement.

Plus, Doxo's new mobile app, Google maps the sea floor, tips on staying sane at a start - up, and what else you need to know today.

Big Foot, which was slated to be online this year, had a major setback last summer with the sinking of at least nine giant tendons, designed to connect the platform to the sea floor.

At BP's massive Thunder Horse oil platform in the U.S. Gulf of Mexico, a dog - sized robot called Maggie uses magnetic tracks to creep along pipes connecting the giant oil facility to the sea floor.

Surplus renewable electricity is used to drive a compressor that pressurizes atmospheric air to the pressure found at the sea floor offshore.

As I surveyed the sea of white platform heels, the most popular girl in our grade caught my eye, glancing down at the floor where I was self - consciously attempting to wedge my feet further under my backpack to hide my obviously uncool footwear choices.

Saturn had only three rings, no life existed at the dark bottom sea floor, the expansion of the universe was slowing!

It is with Chef Bennett's passion for clean eating that The Sea Grill moves forward into the New Year appealing to those who look forward to a night out, enjoying the splendors of front - row, floor - to - ceiling views of The Rink at Rockefeller Center.

Well inside this figure you can go progging for lobsters at Silver Seas, a place that puts on floor shows complete with donkeys, chickens, goats and an impresario named Lord Composer who votes under the cognomen of Roy Muddle.

At one point he lost a flipper which started to sink to the sea floor, but luckily I was able to rescue it and quickly learned how to clear my snorkel!

To find out more about how they manage to survive, Brandon Briggs at Miami University in Oxford, Ohio, and Frederick Colwell at Oregon State University in Corvallis have sequenced and compared genomes belonging to one particular class of deep life — Firmicutes bacteria — sampled 21, 40 and 554 metres below the floor of the Andaman Sea, west of Thailand.

David Valentine and colleagues at the University of California, Santa Barbara, surveyed the sea floor and discovered the mounds, the largest of which rises 20 metres above the seabed, made from tar.

The team found that species of foraminifera living on the sea floor around the time of the ice age contained more carbon than those that floated at the surface (Science, DOI: 10.1126 / science.1188605).

Wolfgang Kiessling of Humboldt University in Berlin, Germany, and colleagues looked at the earliest fossil evidence of 6615 genera of sea - floor invertebrates to see where they first emerged (Science, DOI: 10.1126 / science.1182241).

Three basic forces are believed to drive oceanic plate movement: plates are «pushed» away from mid-ocean ridges as new sea floor forms; plates are «pulled» as the oldest parts of the plate dive back into the earth at subduction zones; and convection within the asthenosphere helps ferry the plates along.

That meant a hatch in the floor could remain open without the sea rushing in, and the aquanauts living inside had ready access to the sea outside at any time of day or night.

In places where sea - floor oxygen levels are a bit higher — about 0.5 — 3 % of concentrations at the sea surface — animals are more abundant but their food webs remain limited: the animals still feed on microbes rather than on each other.

Looking at the entire upper mantle, the scientists found that the most powerful process causing rocks to flow happens in the upper part of the lithosphere as new sea floor is created at a mid-ocean ridge.

Life has been found 1.6 kilometres beneath the sea floor, at temperatures reaching 100 °C.

Storing gas underneath the ocean floor is a «poor choice,» he said, since gas leaking at the same rate could spur acidification and harm corals and other sea life.

«Step back and think about this: Small variations in the orbital parameters of the Earth — tilt and eccentricity and wobble — are recorded on the sea floor,» says Richard Katz, a geodynamicist at the University of Oxford in the United Kingdom and a co-author of the Science paper.

Experiments are under way to mimic possible life - forming processes at alkaline vents on the sea floor, and perhaps elsewhere in the solar system

David Anderson of the University of Colorado at Boulder and his colleagues extracted cores of this fossil - filled sediment from the floor of the Arabian Sea to reconstruct monsoon intensity over the past 1,000 years.

And the whales are beginning to feed at various depths as well as along the sea floor, a shift that may have to do with changes in the population densities of their prey.

Most stalked crinoid fossils depict spindly, plantlike animals anchored to sea floor rocks, explained William Ausich, professor of earth sciences at The Ohio State University and co-author of the study in the open - access journal Geologica Acta.

He remains very concerned about the exposure of animals that inhabit the depths and migrate upwards at night to feed, as well as animals at the sea floor.

Although CryoSat - 2 is designed to measure changes in the ice sheet elevation, these can be translated into horizontal motion at the grounding line using knowledge of the glacier and sea floor geometry and the Archimedes principle of buoyancy — which relates the thickness of floating ice to the height of its surface.

Using supercomputers, the researchers found that this dense piece of ocean floor material (called a lithospheric slab) is slowly sinking into the Earth's mantle and is responsible for the formation of the Lake Eyre Basin, one of the Earth's largest internally drained basins and home to the lowest point in Australia at 15m below sea level, as well as the Murray - Darling Basin, home to the largest river system in Australia.

At the time, the Appalachian Mountains — where the Luray Caverns now reside — were an ancient sea floor.

«But if you look at methane in the sea floor, it's the lightest carbon source [isotopically] on the planet.»

Hayes and his team measured the elevation of lakes filled with liquid as well as those that are now dry, and found that lakes exist hundreds of meters above sea level, and that within a watershed, the floors of the empty lakes are all at higher elevations than the filled lakes in their vicinity.

New crust forms at midocean ridges where the sea floor spreads apart.

By tunneling through the sea floor, scientists say, these creatures kept oxygen concentrations at just the right level to allow animals and other complex life to evolve.

The study is the first to demonstrate this kind of teleconnection between the sea floor, subsea floor and microbial processes in the upper ocean, said Andy Juhl, an aquatic ecologist at Lamont and coauthor.

A second test looked at how much sea floor a mass of magma could make.

In contrast, Lamellibrachia lives at cold seeps — fissures on the 2 - degree - Celsius sea floor that emit methane and other gases for centuries or longer — and inches up about a meter every 100 years, topping out at 3 to 4 meters.

In the study, recently published in the Journal of Ecology, researchers compared photos of sections of the sea floor, collected over 30 years, at several subtidal sites in the Southwestern Gulf of Maine.

By tunneling through the sea floor, these creatures altered our planet's chemistry and kept oxygen concentrations at just the right level to allow animals and other complex life to evolve.

At threshold sedimentation rates of 1 millimeter per 1000 years, the low rates of microbial community metabolism in the North Pacific Gyre allow sediments to remain oxygenated tens of meters below the sea floor.

On a hypothetical journey to the centre of the Earth starting at the sea floor, you would travel through sediment, a layer of basalt, and then hit the gabbroic layer, which lies directly above the mantle.