Such depths are commonplace when sample cores are drilled out of the earth's crust by geologists.
Geothermal technology uses energy in the earth's crust to heat water and buildings.
No large hole in the earth's crust seems to be 202m years old.
There is no technology to plug volcanoes which pierce the earth's crust, or to bind the faults which cause earthquakes.
ECONOMIST: Disasters are about people and planning, not nature��s pomp
From the harmonies of randomness to the dynamics of the Earth's crust, Kahn uses scientific principles to create mesmerizing works of art.
Both rigs plunge pipes thousands of feet further into the Earth's crust.
The Department of Energy estimates the amount of fluid hydrocarbons remaining in the Earth's crust is the equivalent of 7.6 trillion barrels of oil.
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").
The distances between the circular antenna and the GPS satellites above are measured every 15 seconds to provide vital information about the Earth's crust movements.
The rock is peridotite, which is one of the main rocks in the upper mantle, an area that provides a girth below the Earth's crust.
Bacteria would still be able to live in hydrothermal vents at the bottom of the oceans, kept going by heat generated radioactively in the earth's crust.
It lies in the Great Basin, an area where the earth's crust is thin and cracked, so it has great potential as a producer of geothermal power.
According to which you believe, great earthquakes will cause California to fall into the Pacific, tidal waves will devastate coastal cities, or the earth's crust will shift.
And those estimates are of what mining companies have concrete plans to get at numbers that are significantly lower than the colossal quantities of reserves buried throughout the Earth's crust.
These are relatively small pieces of the earth's crust that, when caught between two larger plates, spin around as the larger plates move like a ball-bearing caught between two surfaces.
Dr Duif rules out a third explanation, too: that cooling of the Earth's crust due to the eclipse shadow causes the ground to tilt slightly, and thus distorts the results.
Mountains are naturally high-energy environments, being formed by the collision of plates of the earth's crust that, at least for 'young' ranges like the Alps, Andes, and Himalayas, are still moving.
The most compelling case for asteroid mining is for a yet-undesired element that turns out to be not abundant in the earth's crust and becomes suddenly valuable because of some future technological advance.
Such concentrations are usually created by geological events, such as volcanic eruptions and tectonic plate shifts that steer hot metal-bearing fluids into upper, accessible parts of the Earth's crust, erosion, or massive sedimentary movements.
Monster drills would cut a hole a yard or so in diameter down 2.5 miles into the Earth's crust, past the deepest groundwater into granite rock formations that have sat undisturbed for billions of years.
"The recent earthquakes in Manchester and Italy have highlighted our need to better understand the movement of the Earth's crust in England, " said Dr Matt King of Newcastle University's School of Civil Engineering and Geosciences.
As luck would have it, a project called NOvA, which should start collecting data in the spring of 2013, will send neutrinos through the Earth's crust from Batavia to an underground detector 810km away in Minnesota.
"Impact craters like this give us clues into how the Earth's crust is recycled and the speed of erosion, and may be implicated in episodes of widespread extinction of animals in the geological past, " Pratt said.
New techniques have been developed to "sidetrack" a well when the pipe gets stuck or to control the pressures and temperatures found five miles down into the earth's crust with blow-out preventers and special purpose high-tech drilling rigs.
To make room for the continual addition of new ocean crust, all the Earth's plates move.
应用推荐