Sentences with phrase «noble gas in»

«We don't see any solar noble gas in the mantle,» he says.

But isotopes of some noble gases in the stone are nothing like those found in other meteorites, which all came from asteroids that formed inside the orbit of Jupiter.

Greg Holland, a postdoctoral researcher in isotope geochemistry at the University of Manchester in England, and his colleagues measured the amounts of various isotopes of noble gases in the Bravo Dome gas field in New Mexico, where magmatic gases — primarily carbon dioxide — that allow the mantle to be sampled are buried hundreds of meters below.

The team are now running further analyses: the noble gases in the water samples will provide a fairly precise age.

With this study, Severinghaus and colleagues have shown that measurements of noble gases in the atmosphere provide the historical record long sought by the scientific community, and can be further optimized to gain insights into modern ocean temperature changes as well.

Researchers at the University of California, San Diego decided on a different model — they measured the ratio of noble gases in the atmosphere, which are in direct relation to the ocean's temperature.

Becker, L., R.J. Poreda, A.G. Hunt, T.E. Bunch, and M. Rampino, 2001: Impact event at the Permian - Triassic boundary: Evidence from extraterrestrial noble gases in fullerenes.

Another temperature measurement that shook paleoclimatology came from the fraction of noble gases in ancient groundwater: Stute et al. (1995).

Not exact matches

A deposit discovered by Texas - based Noble Energy in 2011 is estimated to contain more than 4 trillion cubic feet of gas.

Almost the only elements present in interstellar space are hydrogen and helium — and the latter, being an inert or noble gas, is not a component of life in any form known to man.

He's chairman of the New York League of Conservation Voters Education Fund and is on the board of directors of Noble Energy, an independent gas - and oil - exploration company with more than $ 17 billion in assets.

The state Democratic Committee, in turn, has accused Cox of pushing the fracking issue because of his ties to the natural gas industry, with some lawmakers, including IDC Leader Jeff Klein, to call for an investigation of the financial relationship with Noble Energy.

Meanwhile, Cox is being criticized by Democrats because he is on the board of directors of the Texas - based natural gas drilling company Noble Energy and holds about $ 3 million in its stock.

The Republican Party responded to Mr. Paterson by noting that Noble Energy currently has no infrastructure in New York State to harvest natural gas through fracking.

For example, they want to measure the planet's inventory of stable noble gases, such as xenon and krypton, which change little in abundance over billions of years and hold clues to planetary origins.

«Minerals from Papua New Guinea hold secret for recycling of noble gases: Scientists find atmospheric gases trapped in minerals that are crystallized in Earth's mantle.»

A new study by Suzanne Baldwin, the Michael G. and Susan T. Thonis Professor of Earth Sciences, and Jayeshkumar Das, a research associate of Earth sciences, brings insight to how atmospheric noble gases, in particular argon and neon, cycle from the surface to the Earth's mantle, and back to the surface again.

The scientists are working on the assumption that, even in the noble gases, charge transfer occurs and therefore weak covalent bonds are occasionally formed, which would explain the higher values.

The agglomeration of copper or silver atoms in a matrix of noble gas atoms to form small clusters may be accompanied by the emission of visible light.

A new concept might help to efficiently treat exhaust gases after the cold start of engines and in urban traffic and to reduce the consumption of expensive noble metal.

The stone's noble gas content supports an extraterrestrial origin, while the presence of tiny diamonds — larger than nanodiamonds found in a common kind of meteorite called chondrites, but similar in size to diamond aggregates known to be formed by impacts — supports a cometary origin.

«Although theoretically ideal for energy transfer or storage, metallic hydrogen is extremely challenging to produce experimentally,» said Ho - kwang «Dave» Mao, who led a team of physicists in researching the effect of the noble gas argon on pressurized hydrogen.

10 In 1902 he acknowledged he had not anticipated the existence of these overlooked, incredibly unreactive elements — the noble gases — which now constitute the entire eighth group of the table.

A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionating liquefied air, and is often used with other rare gases in fluorescent lamps.

Matthias Raab, the programme manager of the site, tells me, euphemistically, that using the tracers «is highly experimental» — in other words, it is not clear that noble gases behave as CO2 does.

Helium is a chemical element that has the symbol He, is colorless, odorless, tasteless, non-toxic, and nearly inert monatomic that heads the noble gas series in the periodic table.

Professor Mukhopadhyay continued «The geochemistry indicates that there are differences between the noble gas isotope ratios in different parts of Earth, and these need to be explained.

The model's noble - gas ratio predictions were similar to the ratios found in atmospheric data gathered from as far away as Japan and Russia nearly two months after North Korea announced it had conducted an underground explosion in 2013.

In a traditional laser, light waves bounce back and forth between two mirrors at either end of a tube full of a noble gas such as helium or neon.

Argon, an inert, «noble» gas, then lights up in the next round of pulsing.

A colorless, nearly inert noble gas, neon gives a distinct reddish glow when used in vacuum discharge tubes and neon lamps and is found in air in trace amounts.

Detection of a Noble Gas Molecular Ion, 36ArH +, in the Crab Nebula.

That's because, on top of bringing water, they are also believed to have delivered much of Earth's so - called volatile elements, namely, carbon, nitrogen, and noble gases, says Conel Alexander, a cosmochemist at the Carnegie Institution for Science in Washington, D.C. To explain the abundance of these elements, there would have had to have been enough impacts to also deliver Earth's water, he says.

The third noble gas, in group 18, argon makes up about 1 % of the Earth's atmosphere, making it the most common noble gas on Earth.

A molecule containing a noble gas has been discovered in space by a team including astronomers from Cardiff University.

By measuring the abundance of an isotope of the noble gas argon in the rock or its crystals, Gazel and his colleague Michael Kunk of the U.S. Geological Survey found that the magma was much younger than the last known volcanic event on the East Coast — which occurred when the supercontinent of Pangaea slowly pulled apart into North America, Africa and South America some 200 million years ago, forming the Atlantic Ocean in the process.

«Noble gas molecule discovered in space.»

At room temperature, scientists expect that these oganesson atoms could clump together in a solid, unlike any other noble gases.

In a typical medical device, atmospheric pressure plasma is made from a noble gas such as helium.

ATLANTA — Known to comic book aficionados as a potent superhero, xenon — in real life, a mild - mannered noble gas — may soon turn its super powers to medicine.

In other words, the noble gases of the atmosphere are isotopically heavier than those of the sun.

The noble gas xenon, polarized by a laser and then inhaled by a rat, lights up the lungs and heart as seen in front (first row) and top views.

THE noble gases don't sound that exciting, and they barely feature in daily life other than in helium balloons and neon lights.

I thought physicists had given up hope when I read «Why nothing matters» in the online version of the editorial to your special issue covering zero, the empty set, electron hole theory, the vacuum and noble gases (newscientist.com/article/mg21228391.300).

These MOFs might also be able to capture other noble gases such as radon, a gas known to pool in some basements.

Although these gases can come in radioactive varieties, they are part of a group of chemically inert elements called «noble gases.»

While noble gases have been trapped before in three - dimensional porous materials, this is, to the best of our knowledge, the first report of a noble gas trapped in cages on a two - dimensional porous material.

Here, we show that the aforementioned 2D - zeolite models can trap individual Ar atoms in the nano - cages that make the surface, providing a new playground for the fundamental study of isolated noble gas atoms in confinement with surface science methods.

The confinement of noble gases on nanostructured surfaces, in contrast to bulk materials, at non-cryogenic temperatures represents a formidable challenge.

The extreme temperatures and gas pressures in carbon stars are perhaps the only way extraterrestrial noble gases could be forced inside a fullerene, she explained.