Sentences with phrase «miles of sediment»

In that region, called the Newark Basin, 5 miles of sediment layers spanning 32 million years had piled up in a sinking basin.

To understand sediment compaction along Cascadia, Han and her collaborators conducted a seismic survey off the coast of Washington and Oregon that allowed the researchers to see up to four miles of sediment layers overlaying the subduction zone.

Last year, her research team delivered the coup de grâce: evidence of an impact crater off the northwest coast of Australia, hidden beneath two miles of sediment on the ocean floor.

When the asteroid hit, it's estimated that it delivered over a billion times the energy of the nuclear weapons dropped on Hiroshima and Nagasaki, and displaced roughly 48,000 cubic miles of sediment.

During the last 11,000 - 18,000 years, continued uplift associated with the movement of the earth's crust and erosion removed approximately 30 miles of sediments and volcanic rocks along the northwestern Oregon coast.

Not exact matches

General Electric removed 2.65 million cubic yards of contaminated sediment from a 40 - mile stretch of the upper Hudson through 2015.

Luciano suggested that the sediment be vacuumed from the river's channel so Starbuck Dam — about 5.5 miles south of Schroon Lake — would be more effective at controlling the lake level.

The announcements Thursday marked the sixth and final season of dredging PCB - contaminated sediments from the bottom of a 40 - mile stretch of the upper Hudson between Fort Edward and Troy.

Specifically, they have found unnaturally high levels of antibiotic resistance genes in sediments where the river comes into contact with treated municipal wastewater effluent and farm irrigation runoff as it flows 126 miles from Rocky Mountain National Park through Fort Collins and across Colorado's eastern plain, home to some of the country's most densely packed livestock operations.

Because these bulkheads block the small flow of health sediment, one section of bulkhead can impact fragile ecosystems for miles downstream.»

Flood sediment settled over collapsed buildings and crushed bodies some 15 miles downstream at the archaeological site of Lajia.

The big question is how much damage a quake of that size could do to Bangladesh, which sits atop a layer of sediment about 12 miles thick.

We see the deep past here through narrow temporal and spatial windows — walk a mile in any direction and you are either hundreds of thousands of years earlier or later because you are walking on eroding sediments from different slices of time.»

The preserved layers in the core revealed that the site held a sediment record stretching back at least 14,000 years — and the spot, Lake Hill, was only a quarter of a mile away from the cave where Graham had made his discovery.

Water bug The extinct insect Ephemeropsis is probably the most abundant fossil in the Yixian Formation, a mile - thick layer of sediment containing most of the great finds from Liaoning.

David Sandwell, a geophysicist at the Scripps Institution of Oceanography, and his colleagues used that phenomenon to produce these startlingly detailed charts of the deep, even features buried under mile - thick sediment layers.

The evidence is now clear that far below the sea, and far below the floor of the sea, in sediments all over the world, microbes live to astonishing depths — the record so far is half a mile — and in astonishing numbers.

This time Becker, Basu, and four other coauthors described a submarine hump called Bedout High that is buried in ocean sediments 100 miles off the northwest coast of Australia.

A group led by British sedimentologist Paul Wignall of the University of Leeds writes about examining rocks cored from basin sediments 600 miles south of Bedout.

They were 75 miles west of the Crimean city of Sevastopol, 750 feet above an undersea slope along which sediment from the Dnieper River cascades down into the depths.

To study the movement of vent products, the researchers set up sediment traps and current meters near the hydrothermal vents along the East Pacific Rise, an ocean ridge located about 800 kilometers off the southern coast of Mexico and a mile and a half below sea level.

Twelve miles of the Kalamazoo River near Marshall, Michigan, will be temporarily shut while Enbridge dredges approximately 350,000 cubic yards of contaminated sediment.

Surprise find The team's actual mission was to survey ocean currents near the Ross Ice Shelf, a slab of ice extending more than 600 miles (970 kilometers) northward from the grounding zone of the West Antarctic Ice Sheet into the Ross Sea, to model the behavior of a drill string, a length of pipe extending to the seafloor which delivers drilling fluids and retrieves sediment samples.

Wind vortices blowing across the crater slowly formed a radial moat in the sediment, eventually leaving only the off - center Mount Sharp, a 3 - mile - high peak similar in height to the rim of the crater.

To assess the climate in that area before and after Cantona's collapse, UC Berkeley geographers analyzed sediment cores from a lake located 20 miles south of the former city.

The maar lake Aljojuca, 20 miles south of Cantona, yielded sediments that recorded a lengthy series of droughts between A.D. 500 and 1150 that likely led to the abandonment of Cantona in A.D. 1050.

Bacteria, however, have remained Earth's most successful form of life — found miles deep below as well as within and on surface rock, within and beneath the oceans and polar ice, floating in the air, and within as well as on Homo sapiens sapiens; and some Arctic thermophiles apparently even have life - cycle hibernation periods of up to a 100 million years while waiting for warmer conditions underneath increasing layers of sea sediments (Lewis Dartnell, New Scientist, September 20, 2010; and Hubert et al, 2010).

I remember reading about these additives at one point, where it was suggested to cycle between different brands every X amount of km / miles; this cause brand 2 to cleanup any sediments left by brand 1.

Researchers from Ohio State University who measured carbon while a typhoon was passing through in full force in Taiwan — essential since sediment washes away very quickly after a storm — found that more than 400 tons of carbon was being swept away for each square mile of watershed during the storm.

Amazingly, these two different measures, from parts of the globe thousands of miles apart, showed strong ties - implying that El Nino and La Nina swings could be measured from these Kenyan lake sediments, going all the way back to the last ice age.

The 150,000 tonnes of methane bubbling up from sediment in the retention lake on the river Are over a year are the equivalent of emissions from 2,000 cows, or 25 million kilometres (15.5 million miles) travelled by cars, EAWAG added in a statement.

From their trawlers scraping the floors of the seas to their dams impounding sediment by the gigatonne, from their stripping of forests to their irrigation of farms, from their mile - deep mines to their melting of glaciers, humans were bringing about an age of planetary change.

From here, Olsen can survey the remnants of this lost world: miles and miles of surreal badlands, where sediments built up over millions of years have eroded back down to expose endless cross sections of brightly colored rocks.

The researchers studied cores of seafloor sediment representing 500,000 years of deposition, spanning about 6,000 miles of the Pacific equator, from near Papua New Guinea to near Ecuador's Galapagos Islands — nearly a quarter of the globe's girth.