Sentences with phrase «rock deep underground»

Furthermore, chemicals used in hydraulic fracturing, which involves cracking shale rock deep underground to extract oil and gas, can contaminate groundwater resources [137,138,139].

A team of researchers studying water quality around hydraulic fracturing, the process used to extract gas from rock deep underground, have found a blueprint to move those conversations forward.

Ancient rocks deep underground contain water that has been locked away for billions of years.

Injecting carbon dioxide into wet, porous rocks deep underground may be a good way to reduce emissions of this major greenhouse gas because the rocks trap the gas better than previously thought, a new study claims.

Not exact matches

Fracking, as the technique is known, is the use of chemical - laced water injected deep underground to create fissures in underground rock formations and release natural gas and oil.

He said while some hyrofracking chemicals are toxic and carcinogenic, public exposure to such chemicals is manageable, and that there are no known cases of the chemicals — which are injected deep underground a mile or more to fracture gas - bearing rock layers — reaching the surface to contaminate water or air.

Hydrofracking relies on a high - pressure blend of chemicals, sand and water pumped deep underground to break up gas - bearing rock formations, freeing gas to rise up the well to the surface.

Oil and gas companies developing fields in Pennsylvania, Ohio, Texas, Louisiana, Arkansas and North Dakota rely on a process called hydraulic fracturing, which produces natural gas by blasting water and chemicals into energy - rich rock formations deep underground.

The strain is accommodated by either rocks sliding past one another, causing earthquakes, or by molten rocks welling up from deep underground to fill the opening space, ultimately leading to volcanic eruptions.

The team also analyzed how deep the earthquakes occur underground and concluded that as quakes occur deeper, the rocks become stronger and the stress drop, or force behind the earthquakes, becomes more powerful.

Because different noble gases move at various speeds through rock and water, the proportions present revealed that although the gases had come from deep underground, they had arrived directly rather than percolating through layers of rock and water (PNAS, DOI: 10.1073 / pnas.1322107111).

To obtain a clearer, quantifiable look at carbon trapping rates in basalt, Giammar collected samples of the rock from Washington state, where researchers previously injected a thousand tons of CO2 gas deep underground into a basalt flow.

Deep underground, uranium atoms in rocks undergo radioactive decay, sending off alpha particles — two protons and two neutrons — that can bump into other molecules and change them.

That water is saltier than seawater and may contain naturally occurring arsenic and radioactive elements trapped inside rock formations deep underground.

Dr Alice Samson, co-author of the paper from the University of Leicester School of Archaeology and Ancient History, explains: «Scientific analyses from the team have provided the first dates for rock art in the Caribbean — illustrating that these images are pre-Columbian made by artists exploring and experimenting deep underground.

Other issues included developing new instruments and techniques to monitor rock formations deep underground, said Aradóttir.

In principle, however, the CO2 could also be pumped deep underground and locked safely away in specific rock formations for millennia.

The activity begins deep in a geyser's underground plumbing (video), where high - pressure water boils, sending bubbles up through a narrow column of water within the overlying rock.

University of Oregon geologists have tapped water in surface rocks to show how magma forms deep underground and produces explosive volcanoes in the Cascade Range.

Methods: One option for storing carbon dioxide is to capture the gas and inject it deep underground in porous rock formations.

Geologic sequestration involves injecting would - be CO2 emissions deep underground into rock formations that trap this CO2 permanently (well, permanently as far as humans are concerned).

Hydraulic fracturing, or «fracking,» is a petroleum - extraction procedure in which millions of gallons of water (as well as sand and chemicals) are injected deep into underground shale beds to crack the rock and release natural gas and oil.

While Price is not expecting any time soon a mission to Mars to drill several hundred meters beneath the surface, methanogens (methane - generating Archaea) could just as easily be detected around meteor craters where rock has been thrown up from deep underground.

Deep inside an abandoned nuclear missile silo in the middle of the California desert, indie rock legend - turned recluse Richard Havoc and his band of alt - rock misfits sequester themselves 15 stories underground as a giant F - U to «The Man.»

In 2010, a mine in Chile collapsed trapping thirty - three men under 700 tons of rock — deeper underground than the length of two Empire State Buildings.

Deeper underground, Crystal Cave and Fantasy Cave in Hamilton Parish with their amazing rock formations, and the former with its 55 - feet deep sapphire - bottomed lagoon, are perfect to explore on a hot day.

Cenote Ik» kil is a large and perfectly round cenote situated deep underground, with lots of long tree roots hanging from the ground level all the way down into the water and sheer rock walls on all sides.

Living in New York City in the late 1970s and early «80s, Wool immersed himself deep into the underground film and music scene that centered around the East Village, finding a kind of nihilistic camaraderie in the punk rock aesthetic that thrived amidst the city's crumbling decay.

The government hopes to revive domestic natural gas production with the technology that has transformed the energy picture in the United States — horizontal drilling into deep underground shale, and high - pressure injection of water, sand, and chemicals to create fissures in the rock to release the gas.

Disposing of wastewater by injecting it into impermeable rock formations deep underground is standard practice in oil - and gas - drilling hotbeds such as Texas — only the rock under Pennsylvania is not porous enough to contain it.

With its deep roots descending into the underground rock, the tree provides protection to the people by stabilising the soil from landslides in the steep highlands.

Hydraulic fracturing sends «huge volumes of toxic fluids» deep underground at high pressure, to fracture shale rock and release natural gas, Food & Water Watch claims.

BECCS is another system that uses fast growing trees to be burned for electricity generation, and emissions stored underground in old oil wells, and deep permeable rock formations, but this needs gigantic areas of land, irrigation and fertiliser and expensive, energy intensive processes.