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US News Earth’s Missing Noble Gas May Not Be Lost After All

09:50  10 march  2018
09:50  10 march  2018 Source:   newsweek.com

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Xenon has almost vanished from Earth ' s atmosphere. Geoscientists think it might have disappeared in space. Xenon, the second heaviest of the chemically inert noble gases , has gone missing . Meteorites bombarded the planet, causing it to lose much of its primordial atmosphere.

The missing noble gas Xenon did not leave atmosphere and disappeared into space but may be resting at earth ' s core, a thrilling study reveals. Xenon is a noble gas . Like other noble gases such as helium and neon, it is mostly chemically inert.

  Earth’s Missing Noble Gas May Not Be Lost After All © NASA / AFP Xenon, one of Earth’s rarest and most mysterious gases, has left scientists puzzled for decades. They’ve long thought that the Earth’s atmosphere should contain more of the noble gas, but new research has shown that it might be here after all—it’s just hiding far away from us.

In an effort to solve what scientists often call “the missing Xe paradox” a team of international researchers examined the theory that xenon is tucked away deep inside our planet’s core. Previous findings have found that just like the other six noble gases—argon, helium, neon, krypton, radon and oganesson—xenon is unreactive, meaning it doesn’t mix well with other compounds or elements. However, under certain circumstances, it may actually react.

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Helium gas - essential for MRI scanners, semiconductor manufacture (and according to some, party balloons) - may not be on the verge of running out after all . More information: Noble gas evidence for the mechanisms creating commercial helium reservoirs Earth ' s gravity increasing over time?

Besides, any explanation for Earth ' s missing xenon should also apply to Mars, where the atmosphere also has a dearth of the noble gas . 100,000 year old skulls may belong to elusive Denisovans. Ancient 'Hades' Gate' still emitting poison gas centuries after mysterious deaths.

“When xenon is squashed by extreme pressures, its chemical properties are altered, allowing it to form compounds with other elements,” Sergey Lobanov, study co-author and researcher at the Institute for Mineral Physics at Stony Brook University, said in a statement.

Layers of the Earth: In an effort to solve what scientists often call “the missing Xe paradox” a team of international researchers examined the theory that xenon is tucked away deep inside our planet’s core. © Getty Layers of the Earth: In an effort to solve what scientists often call “the missing Xe paradox” a team of international researchers examined the theory that xenon is tucked away deep inside our planet’s core. Lobanov and his colleagues tested their theory by using advanced technology to mimic the condition of Earth’s core. They then successfully attempted to get xenon to react with the metals nickel and iron, both of which are abundant in Earth’s center. Under extremely high temperatures and pressure, the elements reacted, according to the findings published in the journal Physical Review Letters.

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Noble gas analyses may play an important role in understanding the dynamics of gas hydrate reservoirs An alter-native explanation for the “ Missing Xenon Problem” is that Xe was lost through a specific sequence of processes early in the evolution of our Earth (e.g., Tolstikhin and O’Nions, 1994).

More than 4 billion years ago, Earth was molten. Meteorites bombarded the planet, causing it to lose much of its primordial atmosphere. Besides, any explanation for Earth ’ s missing xenon should also apply to Mars, where the atmosphere also has a dearth of the noble gas .

“Our study provides the first experimental evidence of previously theorized compounds of iron and xenon existing under the conditions found in the Earth's core,” Alexander Goncharov, study co-author and staff scientist at Carnegie Institution for Science, said in a statement. 

However, the same reaction likely wouldn’t have been seen billions of years ago when the Earth was forming, Goncharov explains. Rather, as the planet’s internal pressure and temperature increased over the years, new compounds were able to be made.

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There are still many questions to be answered. The team is now investigating whether a two-part formation process played a role in trapping xenon when the Earth first formed and then once conditions were altered, later allowed xenon reactions to occur.

“There are many more systems and paradoxes to resolve,” Elissaios Stavrou, study co-author and Lawrence Livermore National Laboratory physicist, said in a statement. “We look forward to writing new chapters about extreme physicochemical phenomena.” 

Exclusive: Tina not being portrayed as ‘kind and bubbly’ woman she is says family .
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