How To Use Earth's crust In A Sentence
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As the earth's crust was forced upwards, it displaced hundreds of cubic metres of water along an area as large as 1000 km long and 100 km wide.
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The attenuation of ground motions is due to the geometrical spreading of seismic waves and the loss of their energy that results from material damping or absorption of energy by the Earth's crust and mantle.
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Because of the inconvenient ice cover, most Antarctic geology can be studied only by remote-sensing methods such as seismology, which involves setting off explosions, bouncing the soundwaves down through the ice to the earth's crust and recording them on their way back up.
Terra Incognita
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A prime target for innovation is called a blowout preventer, a massive stack of valves that fits around drill pipe that extends into the earth's crust.
Gulf Disaster Fuels New Safety Gear
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Most of the rock formations have been metamorphosed, folded, and faulted during the fragmentation and collision of plates of the earth's crust.
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Nevada and large competitors such as Ormat and Enel operate so-called hydrothermal plants, which extract hot water from the Earth's crust in order to turn hydroelectric turbines.
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Depleted uranium is derived from natural uranium mined from the earth's crust.
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Silicon is the second most abundant element in the Earth's crust, since most common rocks have crystalline frameworks made from silicon and oxygen: they are silicates.
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These islands are of volcanic origin and are supposed to have formed over a "hot spot" in the Earth's crust and then subsequently moved eastwards as the Nazca Plate has been subducted beneath the South American continent.
Juan Fernández Islands temperate forests
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The earth's crust is depleted in iridium and other platinum group elements, while meteorites are enriched in them.
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Monstrous, contorted shapes -- those Monterey cypresses look like creatures born underground, who, at the price of almost unbearable torture, have torn through the earth's crust, thrusting and twisting themselves airward.
The Native Son
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These would certainly have involved massive geological and tectonic movements, releasing water trapped beneath the earth's crust, and also involving all manner of major convulsions.
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The presence of basalt and obsidian is a sign of volcanic activity and the instability of the earth's crust in this area.
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Precious metals are elements that are rare in the Earth's crust, are attractive to look at, and are chemically quite inert.
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The total amount of astatine present in the earth's crust, however, is probably less than 1 oz.
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Recent discoveries of "deep life" in cracks in the Earth's crust indicate that some bacteria and many Archaea can live in cracks in hot rocks in which there is effectively no gaseous atmosphere at all, and in which liquid water is only intermittently available.
Ancient Predator Revealed!
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Diamond is obtained from volcanic pipes composed of kimberlite or lamproite, rocks that are found only in cratons, very old stable areas of the Earth's crust.
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Silicon and oxygen are the fundamental constituents of rocks in the earth's crust.
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Much more commonly, however, metasomatism involves chemical exchange with fluids; in the earth's crust these fluids are usually aqueous solutions.
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Earth's crust essentially floats on the denser mantle that behaves as a very viscous fluid.
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Tar pits form when crude oil seeps to the surface through fissures in the Earth's crust; the light fraction of the oil evaporates, leaving behind the heavy tar, or asphalt, in sticky pools.
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Below him the volcano sunk into the Earth's crust, while bubbling lava spilled over it until it was entirely gone.
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Deep internal forces cause movements of the earth's crust.
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The end was an underground chamber situated in a place in the earth's crust where geo-thermal energy will generate sufficient energy to keep me super-cooled.
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Depleted uranium is derived from natural uranium mined from the earth's crust.
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Silicon and oxygen are the fundamental constituents of rocks in the earth's crust.
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Deep in the earth's crust the rock may be subjected to temperatures high enough to melt it.
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In these areas of the Earth's crust, magmatic rocks lie only a short distance below the sea floor.
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In these zones one section of the Earth's crust, called a tectonic plate, moves over or under another.
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Also during this time, the Earth's crust cooled enough that rocks and continental plates began to form.
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Though overladen with quotations, it offered a coherent and plausible account of the evolution of the earth's crust and insisted that the present could be used to explain what had happened in the past.
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Minerals occur naturally in the earth's crust.
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He finds that the movements (termed isostatic) which geologists recognise as taking place deep in the Earth's crust, indicate an age of the same order of magnitude xi as that which is inferred from the statistics of denudative history. [
The Birth-Time of the World and Other Scientific Essays
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he studied the faulting of the earth's crust
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The hills were formed by some upthrusting of the earth's crust which changed the landscape dramatically after the weight of the ice was melted away.
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Deep in the earth's crust the rock may be subjected to temperatures high enough to melt it.
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Oxygen also occurs in the hydrosphere in the form of water, of which it makes up nearly 89% by weight, and in the Earth's crust.
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Delaney said that examining such environments gives researchers a snapshot of what life is like deeper in the Earth's crust, where temperatures are higher.
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Minerals occur naturally in the earth's crust.
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Slab pull is the theory in which subduction of the earth's crust is thought to pull the plates apart.
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Even in fairly recent history the theory of tectonic plates beneath the earth's crust was discounted and scorned before it could eventually be proven.
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He was interested in, you know, geological make-up, earth's crust, astronomy, he'd learn about different constellations, ornithology, he was a keen bird-watcher.
Archive 2008-03-01
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The earthquake resulted when Earth's crust readjusted to the pressure.
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There is a vast amount of uranium still left in the earth's crust and mantle; there are four billion tonnes of the stuff dissolved in the oceans.
Eating the Sun: How Plants Power the Planet
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More than a hundred hotspots beneath the Earth's crust have been active during the past 10 million years.
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The locations in the Earth's crust where these accumulations occur are collectively referred to as orebodies, ore reserves, or ore deposits.
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Hydrothermal vents result from undersea cracks in the earth's crust, which allow lava and hot fluids to seep out.
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Its most abundant mineral is feldspar, which accounts for two-thirds of the Earth's crust.
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It is one of the commoner elements in the earth's crust and indeed in our own bodies.
The Runaway Brain: the Evolution of Human Uniqueness
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Scientists said this week they had drilled into the lower section of Earth's crust for the first time and were poised to break through to the mantle in coming years.
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This is the only isotope of francium occurring in nature, but at most there is only 20-30 g of the element present in the earth's crust at any one time.
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The elements more abundant in Earth's crust seem to have more mentions - iron and oxygen have far more pages than yttrium and scandium.
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The GPS units as a whole measure the rates of deformation of the earth's crust, using the benchmark sites as reference points.
MINUTES TO BURN
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The scientists found that the seismograms were almost identical for waves that had travelled only in the mantle, or Earth's crust, and outer core.
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Deep in the earth's crust the rock may be subjected to temperatures high enough to melt it.
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Earth's crust is like an ice field floating atop the ocean.
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The Earth's crust, as with many planetary crusts, is brittle and breaks relatively easily.
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The earth's crust varies greatly in thickness, the least beneath the oceans, the most under the continental land masses.
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Chlorine occurs abundantly in the Earth's crust and in the Earth's hydrosphere.
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Prior to any volcanic eruption, magma wells up through the earth's crust via any weaknesses in the rock structure.
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There is a vast amount of uranium still left in the earth's crust and mantle; there are four billion tonnes of the stuff dissolved in the oceans.
Eating the Sun: How Plants Power the Planet
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It starts with the lithosphere (earth's crust and soil), goes on to atmosphere and hydrosphere (air and water), and ends up with the biosphere (living things).
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For several generations of geologists the name of J. D. Dana was associated with the concept of the geosyncline, an elongated downwarp in the Earth's crust in which a great volume of sediments accumulated.
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A second important application is the use of a colour alteration index that recognizes the degree of heating at depth in the Earth's crust by means of the colour change shown by a conodont element.
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Earlier projections apparently failed to account for rebounding changes in the Earth's crust following the last Ice Age referred to as "glacial isostatic adjustment".
Hot Sensations Vs. Cold Facts
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Most commercial marble formed more than 230 million years ago, when heat and pressure within Earth's crust rearranged the molecules in limestone, forcing it to recrystallize.
