Sentences with phrase «into mantle»

I especially love the way the barn photo brings so much of who you are into the mantle display.

When the mollusk does this, water is taken into its mantle, which is then closed by contracting sphincter muscles.

«Water, absorbed into the oceanic crust as hydrous minerals, follows the plate into the mantle.

Similarly, dissolved CO2 in the oceans can precipitate to form calcite, which is then deposited on the plate and likewise recycled into the mantle.»

As there is intense and increasing pressure as one travels deeper into the mantle, the lower part of the mantle flows less easily than does the upper mantle (chemical changes within the mantle may also be important).

Subducted - A geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate.

While I don't currently know how to apportion this dissipation between the ocean and the mantle, it seems at least plausible to me that most of it should go into the mantle.

It seems a considerable failure of candor to discuss Greenland's ice at such length without noting that the base of most of it lies far below sea level, the weight of it having pressed the underlying crust of the Earth into the mantle by roughly the ratio of the ice's thickness to the density of the underlying rock -

Considering how little we see of Midna's true form in Twilight Princess, all the detail that goes into her mantle and features is, from what I can tell, pretty faithful and impressively done.

Washington, D.C. — Seawater circulation pumps hydrogen and boron into the oceanic plates that make up the seafloor, and some of this seawater remains trapped as the plates descend into the mantle at...

The mantle residues of crust formation were previously believed to have mixed back into the mantle so thoroughly that evidence of the planet's oldest geochemical events, such as core formation, was lost completely.

These globs later became more like eclogite from ocean crust, a sign that surface material was getting mixed into the mantle, most likely as ocean plates dove beneath continental ones and sank.

A unique chemical signature suggests volcanic rocks recently collected on Baffin Island in the Canadian Arctic survived untouched for 4.5 billion years from before the melted mantle began firing up magma to form Earth's crust and plate tectonics then mixed that crust back into the mantle below.

Carbonates are important constituents of marine sediments and are heavily involved in the planet's deep carbon cycle, primarily due to oceanic crust sinking into the mantle, a process called subduction.

That indicates the plume comes from a relatively deep source, though the data doesn't allow the team to peer deeper into the mantle, near the core.

Mookherjee and Andreas Hermann from the University of Edinburgh estimate that in the deep Earth — roughly 250 to 370 miles into the mantle — water is stored and transported through a high - pressure form of the mineral brucite.

«If these depths are translated to time — and we presuppose that the seafloor sinks into the mantle at a rate of 1 centimeter per year — it could mean that there was a period around 100 - 140 million years ago that experienced more ocean destruction.

«That tells us that most of this plume is primordial material and there are other materials hosted inside of this plume with low Helium - 3, -4, and these are likely crustal materials sent into the mantle at ancient subduction zones.»

To understand how water affects subduction of the oceanic plate, in which layers of different rock types sink into the mantle, the UO team studied hydrogen isotopes in water contained in tiny blobs of glass trapped in olivine crystals in basalt.

The scientists calculated that about 2.2 trillion pounds (1 trillion kilograms) of water are pushed into the mantle every year.

Now «superdeep» diamonds from Brazil reveal the carbon cycle does indeed reach deep into the mantle.

These minerals slowly sink deeper into the mantle over millions of years.

Or perhaps pieces of the North American continent are breaking off and sinking into the mantle (which would also push the warmer mantle upward), observes William Menke, a geophysicist at Columbia University, who was not part of the study.

But at a rate of about an inch a year, the plate plunged beneath the western edge of North America, down into the mantle.

About 10 million years ago, the dense material started to break off and fall into the mantle.

The study has overturned the notion that seawater only makes it about 100 km into the mantle before it is returned to Earth's surface through volcanic arcs, such as those forming the Pacific Ring of Fire that runs through the western America's, Japan and Tonga.

Seawater is introduced into Earth's interior when two tectonic plates converge and one plate is pushed underneath the other into the mantle.

A numerical simulation shows how Earth's crust (blue) is subducted and transported into the mantle (orange).

That increased density provides the negative buoyancy needed to sink a slab deep into the mantle.

Scientists have long thought diamonds could form in subduction zones, where one tectonic plate plunges under another and sinks hundreds of kilometers into the mantle.

If so, she suspects that the liquid could eventually weaken the crust beneath the Atlantic Ocean near the continent's edge, causing it to break off from North America and sink back into the mantle.

Apparently it was once a molten world, similar to early Earth, whose interior separated into a mantle and a crust covered with volcanic rock.

Nonetheless, «it's very hard to look deep into the mantle,» where clues about early geologic dynamics might linger, Shirey says.

With these plate tectonic reconstructions Schellart was able to predict where the fossil subduction zone was during its lifetime some 50 - 70 million years ago, and therefore where the lithospheric slab disappeared into the mantle.

In these regions of «flat - slab» subduction, the Nazca plate moves horizontally for several hundred kilometers before continuing its descent into the mantle, and is shadowed by an extended zone of crustal seismicity in the overlying South America plate.

The Nazca plate beneath northern Ecuador, southern Peru to northern Chile, and southern Chile descend into the mantle at angles of 25 ° to 30 °.

It marks the plate boundary between the subducting Nazca plate and the South America plate, where the oceanic crust and lithosphere of the Nazca plate begin their descent into the mantle beneath South America.

Because of these factors the planet's geological chemistry naturally drags water down into the mantle, whereas on early Earth hydrated rocks tended to float until they dehydrate.»

The deformation produced by the rocks bending and shearing as the slab sinks into the mantle «leaves behind a scar, a weak spot.»

One line of evidence comes from hardy crystals called zircons, found primarily in granite — the formation of granite requires subduction, the sinking of a lithospheric slab into the mantle where it partially melts to produce so - called granitic magma.

The Earth's crust slowly assumed its present dynamic form: in some places the plates go into the mantle; in other places new plates form from the hot material that rises from the interior of the Earth.

While this would have steadily sunk into the mantle, it would not have caused the soft lithosphere to subduct and tear and therefore would not have produced plate margins.

As slabs of Earth's crust decend into the mantle, they encounter a zone about 1,100 kilometers down where the mantle rock abruptly becomes stiffer, flowing less easily.

The study shows that the carbon cycle extends deep into mantle, possibly all the way down to the core - mantle boundary, with billion year storage times.

«If you do the impact scaling from models, [the SPA impact] should have excavated into the mantle,» Moriarty said.

They were hunting for signs of a molecular form of carbon dioxide that might help reveal clues to the cycling of carbon from slabs into the mantle.

Over long periods of time (think millions of years), the crust is subducted deep into the mantle.

When slabs of Earth's crust sink into the mantle layer below, they drag ocean water with them.

Often, one plate gets subducted under another and sinks into the mantle beneath, while elsewhere, new rocks rise to the surface.

«It seems the heavy base of the tectonic plate has «dripped» off into the mantle, leaving a massive gap in the plate beneath Central Anatolia.