Sentences with word «subducts»

They looked to compare the density of subducting slabs at that time with the density of the surrounding mantle, the difference of which would determine how far slabs would have sunk.

Geophysical data, they note, demonstrate that India's basement rock flexes and slides beneath the Himalaya much like the earthquake - ridden subducting oceanic crust.

In contrast, off the coast of central Oregon, the thick layer of subducting sediments are less compact, with water in the pore space between the grains.

As the model helps explain, a volcano can form inland if the slab subducts at a shallower angle, and a hole in the shallow slab allows for a special type of magma to form by melting of the crust.

However, one potential criticism is that the model (the Cane - Zebiak model) does not allow for important extratropical feedbacks such as subducting water masses from the extratropics that eventually can influence the equatorial Pacific thermocline.

Here, the Pacific Plate dives or subducts beneath the North American Plate.

However, one potential criticism is that the model (the Cane - Zebiak model) does not allow for important extratropical feedbacks such as subducting water masses from the extratropics that eventually can influence the equatorial Pacific thermocline.

The researchers suggest these diamonds crystallized when diamond - forming fluids that originated in basalt from ocean crust subducted into the lower mantle.

These great quakes often take place at subducting tectonic plate boundaries, where one plate thrusts beneath another plate, as is the case off the coast of Chile and the U.S. Pacific Northwest.

It is proposed that the development of this modelling strategy could enable the estimation of critical failure thresholds for other mapped subduction asperities where subducting and overriding plates are currently locked.

That's because the rising magma that produced the lavas probably mixed with upper mantle rocks, which have been contaminated with isotopically heavy surface water that got dragged down by subducting slabs of tectonic plates.

SASMEX's main focus is on earthquakes originating in the subduction zone off the southern coast of Mexico, where the Cocos tectonic plate subducts below the North American Plate.

They result from stress in a deep subducted slab where one plate of Earth's crust dives beneath another plate.

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

Colder subducting crust, for example, will have a lower attenuation than the surrounding mantle.

But whereas many other subducting plates slope gradually downward, in the Mariana the Pacific Plate dives nearly vertically.

This also applies to the Earth's surface: the ring - shaped weaknesses can (in the model) only be enlarged and subducted if the margins are torn.

Once the movement has begun, it is perpetuated due to the weight of the dense subducting plate.

Klein, Jagoutz, and Behn investigated whether hotter temperatures in the Earth's interior made a difference in how tectonic plates, once subducted, were transported through the mantle.

Klein used the composition of each rock sample to calculate the density of a typical subducting slab, for both the modern day and 3 billion years ago.

He then estimated the average temperature of a modern versus an ancient subducting slab, relative to the temperature of the surrounding mantle.

The combination of a hotter mantle and denser rocks likely caused subducting plates to sink all the way to the bottom of the mantle, 2,800 kilometers below the surface, forming a «graveyard» of slabs atop the Earth's core.

At the latitude of the earthquake, the Nazca plate subducts eastward beneath the South America plate at a rate of 65 mm / yr.

The giant Sumatran earthquake raised questions about the sea - floor - age hypothesis, because the old subducting crust there should have ruled out a shock of that size, says Okal.

«Some material might be associated with former basaltic oceanic crust that got subducted deeply.

Seawater is regularly forced beneath Earth's crust, along with subducting tectonic plates, where it interacts with an abundance of iron.

In contrast to the constant crustal movement seen on Earth, Venus is thought to undergo periodic episodes of plate tectonics, in which the crust is subducted rapidly within a few million years separated by stable periods of a few hundred million years.

Telegraph Avenue, the real - life Bay Area street at the center of the story, is described as «the ragged fault where the urban plates of Berkeley and Oakland subducted.»

Because the Friedrich data is much older the spatial coverage is rather poor (a lot of sea floor from back then has been subducted away under drifting continents), and some data sites need to be excluded to counter extraneous effects ².

Also, it needs to be understood that eastern boundary currents are part of this meridional overturning circulation (transport and upwelling of water originating as polar water previously subducted)

With Venus storing up enough heat so as to finally subduct its entire surface when it got so much heat energy that it couldn't hold it any more.

However, it must be borne in mind that the MOC can also include shallower, wind - driven overturning cells such as occur in the upper ocean in the tropics and subtropics, in which warm (light) waters moving poleward are transformed to slightly denser waters and subducted equatorward at deeper levels.

Additionally, a different coupled model (Noda et al., 1999b) shows a La Niña - like response and yet another model shows an initial La Niña - like pattern which becomes an El Niño - like pattern due to subducted warmed extra-tropical water that penetrates through the sub-tropics into the tropics (Cai and Whetton, 2000).

Song and team believe that it may be subducted oceanic crust at unusually high levels of water saturation.

As long as rapid continental weathering continued, carbonate was deposited on the oceanic crust and subducted into what Lowe calls «a big storage facility... that kept most of the carbon dioxide out of the atmosphere.»

The Mariana Trench forms the boundary between two tectonic plates, where the Pacific Plate is subducted beneath the small Mariana Plate.

Java is part of a volcanic island arc, formed when one tectonic plate subducts below another.

Because such shifts in olivine change the structure of earth's subducted lithosphere, the new phase transition mechanism could help explain the origins of some deep earthquakes.

Off the east coast of New Zealand, the Pacific plate is subducting under the Australian plate.

This occurs to balance, and is mostly determined, by the volume of cold water subducted at the poles.

The action of plate tectonics, the motion of the Earth's surface, can subduct carbonate sediments; that is, as chunks of the Earth's crust gets pushed together, some of the rocks gets pushed deeper into the interior, where it is subjected to heat and pressure.