Sentences with phrase «from seafloor sediments»

Her work immediately brought to mind the ceramics of Joan Lederman, an artist in Woods Hole, Mass., who creates glazes from seafloor sediments retrieved by oceanographers roaming the world from the nearby Woods Hole Oceanographic Institution:

Previous evidence from seafloor sediments elsewhere is consistent with two Paleocene - Eocene carbon pulses, which «means we don't think this is something is unique to northern Wyoming,» Bowen says.

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.

His team bored several three - meter - long columns of sediment from parts of the seafloor that were covered by Larsen B until its collapse.

In the climate research community, ice cores are generally considered the gold standard, because their layers are highly consistent, unlike sediment layers from the seafloor, which are frequently marred by tectonic shifts, currents or marine organisms.

Its long burial beneath seafloor sediments isolated it from cosmic rays that could have triggered WIMP - masking radioactivity within the lead.

IODP is a collaboration of scientists from 23 countries; the organization coordinates voyages to study the history of the Earth recorded in sediments and rocks beneath the seafloor.

Methane gets squeezed out of the deepest layers of sediments like water from a sponge and migrates up toward the seafloor.

Hundreds of yards below the seafloor, microbes called archaea produce methane from hydrogen and carbon extracted from organic sediments.

During the 20th century, thousands of dams were built on Mississippi River tributaries stopping the flow of fine silt, clay and other sediment from reaching the delta and seafloor to offset erosion.

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.

The first Ediacaran to begin crawling around would have discovered a world devoid of predatory animals, with a seafloor covered either in thick bacterial mats or toxic sediment and, possibly, a climate thawing from a worldwide glaciation event known as «Snowball Earth.»

From this, they calculated that sinkers contribute 7.6 grams of carbon per square meter of seafloor each year, an uncanny match to a food deficit found in a study using sediment traps.

Ettema's team did not actually see the cells: they used computational methods to piece together the genomes from the DNA found in the seafloor sediment.

The rock is an extrusion from a hydrothermal vent, not seafloor sediment.

Formed some 60 million years ago, these concretions conglomerated from ancient seafloor sediments until shoreline erosion gradually unearthed them from the cliffs.

It discusses the clay mineral composition of sediment samples taken from the seafloor surface and marine cores in order to decipher spatial and temporal changes in the sediment provenance.

Their data from the other pole, from the Antarctic ice sheet, bring us an important step closer to nailing down the mechanism of the mysterious abrupt climate jumps in Greenland and their reverberations around the world, which can be identified in places as diverse as Chinese caves, Caribbean seafloor sediments and many others.

They build shells from calcite, which are often well preserved in seafloor sediments after the foraminifera die and sink to the ocean bottom.»

Seafloor sediments show that during past ice ages, more iron - rich dust blew from chilly, barren landmasses into the oceans, apparently producing more algae in these areas and, presumably, a natural cooling effect.

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.

They hope to gather sonar images, sediments and other evidence from the seafloor that might reveal hidden structures...

The new core samples were extracted from roughly 506 to 1,335 meters below the seafloor, and Lowery and his colleagues focused on sediment collected from roughly 617 meters below the seafloor, corresponding to material laid down immediately after the asteroid impact.

The expedition started from the well - established fact that an enormous amount of methane is frozen into a kind of ice known as methane hydrate, buried in seafloor sediments and containing perhaps twice as much carbon as all the world's fossil - fuel reserves combined.

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.