Sentences with phrase «pacific ocean sediments»

[15] Through study of Pacific Ocean sediments, other researchers have shown that the transition from warm Eocene ocean temperatures to cool Oligocene ocean temperatures took only 300,000 years, [11] which strongly implies that feedbacks and factors other than the ACC were integral to the rapid cooling.

Not exact matches

Led by Ken Buesseler, a senior scientist and marine chemist at the Woods Hole Oceanographic Institution (WHOI), the team found that a small fraction of contaminated seafloor sediments off Fukushima are moved offshore by typhoons that resuspend radioactive particles in the water, which then travel laterally with southeasterly currents into the Pacific Ocean.

Real - world data back the claim: Accumulations of calcium carbonate in deep - sea Pacific sediments show that the Pliocene ocean experienced huge shifts at the time, with waters churning all the way from the surface down to about three kilometers deep, as would be expected from a conveyor belt — type circulation.

Hydrate Ridge is a pile of sediments that has been scraped off and piled up as the tectonic plate carrying the northwest Pacific Ocean slides under North America.

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.

Onboard our research vessel, the RV Sally Ride, are eight containers, each as large as a compact car, filled with sediment dredged from the deep Pacific Ocean floor.

As they hoped, the river carried away the sediment and deposited most of it in the Strait of Juan de Fuca, the body of water that connects Puget Sound to the Pacific Ocean.

In 2014, they embarked on an ocean voyage to the central equatorial Pacific Ocean, where they drilled into the sediment bed and collected six cocean voyage to the central equatorial Pacific Ocean, where they drilled into the sediment bed and collected six cOcean, where they drilled into the sediment bed and collected six cores.

Using hand - driven cores, augers, and shovels to reveal the sediments blanketing a lowland facing the Pacific Ocean, and using radiocarbon dating to estimate the times of sand sheet deposition, scientists established a geologic history of past large tsunamis.

Now, new evidence from a marine sediment core from the deep Pacific points to warmer ocean waters around Antarctica (in sync with the Milankovitch cycle)-- not greenhouse gases — as the culprit behind the thawing of the last ice age.

The team also correlated their findings with other studies of California climate history, and for the first time, cross-referenced these with histories of the Pacific Ocean's temperature taken from marine sediment cores and other sources.

This will induce massive dissolution of CaCO3 in the water column as well as the sediment,... we project detectable dissolution - driven changes only by the year 2070 in the surface ocean and after 2230 and 2500 in the deep Atlantic and Pacific respectively.

In my briefings to the Association of Small Island States in Bali, the 41 Island Nations of the Caribbean, Pacific, and Indian Ocean (and later circulated to all member states), I pointed out that IPCC had seriously and systematically UNDERESTIMATED the extent of climate change, showing that the sensitivity of temperature and sea level to CO2 clearly shown by the past climate record in coral reefs, ice cores, and deep sea sediments is orders of magnitude higher than IPCC's models.

In a 2003 expedition to Indonesia, the researchers collected cores of sediment from the seas where water from the Pacific flows into the Indian Ocean.

Scientists plumbing the depths of the central equatorial Pacific Ocean have found ancient sediments suggesting that one proposed way to mitigate climate warming — fertilizing the oceans with iron to produce more carbon - eating algae — may not necessarily work as envisioned.

A recent study by Moffitt and colleagues of seafloor sediments from the end of the last Ice Age, around 10,000 to 17,000 years ago, revealed that Pacific Ocean ecosystems from the Arctic to Chile «extensively and abruptly lost oxygen when the planet warmed through deglaciation,» she said.

The ubiquitous character of certain events further confirms their importance: «the Younger Dryas and a large number of abrupt changes during the last ice age called Dansgaard / Oeschger events (23 abrupt changes into a climate of near - modern warmth and out again, during the last glacial period) have been corroborated in multiple ice cores from Greenland, Antarctica and tropical mountains, marine sediments from the North Atlantic Ocean, the tropical Atlantic, eastern Pacific, and Indian Oceans, and from various records on land.

Changes in the Pacific Ocean state can be traced in sediment, ice cores, stalagmites and corals.

To reach their findings, the team examined ocean sediment cores and found that over the past 100,000 years, at least 8 «pulses» of iron have penetrated the eastern equatorial Pacific.

The corrosive water then spread southward through the Atlantic, eastward through the Southern Ocean, and into the Pacific, dissolving sediments as it went.

In the past decade, scientists have documented similar dust peaks in polar ice cores, and in sediments from the Atlantic and Indian oceans, but records from Pacific were contradictory.

We reconstructed sea surface temperature, El Niño — Southern Oscillation (ENSO) activity, and the tropical Pacific zonal gradient for the past millennium from Galápagos ocean sediments.