OUT OF MIND
Would you like to react to this message? Create an account in a few clicks or log in to continue.
Latest topics
» As We Navigate Debs Passing
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Jan 08, 2024 6:18 pm by Ponee

» 10/7 — Much More Dangerous & Diabolical Than Anyone Knows
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyThu Nov 02, 2023 8:30 pm by KennyL

» Sundays and Deb.....
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptySun Oct 01, 2023 9:11 pm by NanneeRose

» African Official Exposes Bill Gates’ Depopulation Agenda: ‘My Country Is Not Your Laboratory’
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyThu Sep 21, 2023 4:39 am by NanneeRose

» DEBS HEALTH
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptySun Sep 03, 2023 10:23 am by ANENRO

» Attorney Reveals the “Exculpatory” Evidence Jack Smith Possesses that Exonerates President Trump
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyTue Aug 29, 2023 10:48 am by ANENRO

» Update From Site Owner to Members & Guests
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyTue Aug 29, 2023 10:47 am by ANENRO

» New global internet censorship began today
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 21, 2023 9:25 am by NanneeRose

» Alienated from reality
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 4:29 pm by PurpleSkyz

» Why does Russia now believe that Covid-19 was a US-created bioweapon?
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 4:27 pm by PurpleSkyz

»  Man reports history of interaction with seemingly intelligent orbs
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:34 pm by PurpleSkyz

» Western reactions to the controversial Benin Bronzes
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:29 pm by PurpleSkyz

» India unveils first images from Moon mission
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:27 pm by PurpleSkyz

» Scientists achieve nuclear fusion net energy gain for second time
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:25 pm by PurpleSkyz

» Putin Signals 5G Ban
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:07 pm by PurpleSkyz

» “Texas Student Dies in Car Accident — Discovers Life after Death”
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:05 pm by PurpleSkyz

» The hidden history taught by secret societies
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:03 pm by PurpleSkyz

» Vaccines and SIDS (Crib Death)
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 3:00 pm by PurpleSkyz

» Sun blasts out highest-energy radiation ever recorded, raising questions for solar physics
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptyMon Aug 07, 2023 2:29 pm by PurpleSkyz

» Why you should be eating more porcini mushrooms
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptySun Aug 06, 2023 10:38 am by PurpleSkyz

» Study shows that glyphosate impairs learning in bumblebees: a wake-up call for insect conservation
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptySun Aug 06, 2023 10:36 am by PurpleSkyz

» The power of automatic writing: a gateway to unlocking your inner wisdom
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds EmptySun Aug 06, 2023 10:34 am by PurpleSkyz


You are not connected. Please login or register

Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds

Go down  Message [Page 1 of 1]

PurpleSkyz

PurpleSkyz
Admin

Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds


Posted by Julie Celestial on October 16, 2019 at 21:24 UTC (18 hours ago)
Category: Research

Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds Antarctica-f

A recently published study found that Antartica's ice sheets are still emitting radioactive chlorine from marine nuclear weapon tests in the 1950s. This suggests that Antartica regions contain and release the radioactive element differently than what was previously suspected. The results can help scientists with ancient ice dating and their study of the Earth's past climate.
Radioactive isotopes chlorine-36 and beryllium-10 are typically used by scientists to identify the ages of ice in ice cores, barrels of ice acquired by drilling into ice sheets, Abigail Eisenstadt of American Geophysical Union noted. Chlorine-36 has a different atomic mass than regular chlorine since it's a naturally occurring isotope.

The nuclear weapon tests in the United States conducted in the Pacific Ocean in the 1950s to 1960s resulted in reactions that triggered high concentrations of chlorine-36. The isotope reached the stratosphere, making it spread around the Earth. Some of the gas reached Antartica, where it was contained on ice and has stayed there since then.

.
Antarctica ice still releasing radioactive chlorine from 1950 nuclear bomb tests, research finds South-pole
Image credit: @noaa/Unsplash
Some isotopes from nuclear testing have mostly come back to pre-bomb levels in the past years. Scientists expected chlorine-36 to do the same, but their study showed the Vostok region in Antartica is still emitting radioactive chlorine into the atmosphere.
"There is no more nuclear chlorine-36 in the global atmosphere. That is why we should observe natural chlorine-36 levels everywhere," said co-author Mélanie Baroni, a geoscientist at the European Centre for Research and Teaching in Geosciences and the Environment in Aix-en-Provence, France.
Examining the behavior of the isotope in the continent can develop ice dating technology and help scientists understand how the planet's climate transformed over time.
Baroni and the team studied chlorine emissions in different parts of Antartica. They gathered ice samples from a snow pit at Vostok, a Russian research station in East Antartica where there is low snowfall. The scientists compared this sample to the ones from Talos Dome, where there is a big snowfall accumulation.
The results of the research showed that chlorine-36 in Talos Dome has lessened over time, while the Vostok ice had high levels of the isotope, revealing that the Vostok snowpack is still releasing radioactive chlorine.
The researchers are currently developing a plan to drill for a 1.5 million-year-old ice core in the Antartic for further research.
Reference
"A comparison of 36Cl nuclear bomb inputs deposited in snow from Vostok and Talos Dome, Antarctica, using the 36Cl/Cl‐ ratio" - Pivot, S. et al - JGR Atmospheres - https://doi.org/10.1029/2018JD030200

Abstract

36Cl production in the atmosphere is modulated by the magnetic field intensity of both the Sun and the Earth. The record of 36Cl concentration along with that of 10Be in ice cores may, therefore, provide information as to their variability. To better understand the 36Cl signal in glaciological archives, we measured its concentration in Talos Dome snow samples (mean accumulation rate of 8 g.cm‐2.yr‐1 water equivalent) spanning the 1955 to 1980 C.E. period with a resolution of one sample every 3 years, and in Vostok snow samples (mean accumulation rate of 1.96 g.cm‐2.yr‐1 water equivalent) spanning the 1949 to 2007 C.E. period with a six‐month resolution that had never before been obtained. Marine nuclear bomb tests in the late 1950s produced anthropogenic 36Cl which was injected into the stratosphere and spread around the globe. In the late 1950s, this anthropogenic pulse led to an increase of 36Cl concentration at Talos Dome that was more than 100 times higher than the pre‐ and post‐ bomb values. It is noteworthy that the atmosphere of Vostok remains polluted by anthropogenic 36Cl today. This pollution results from gaseous H36Cl mobility at low accumulation sites and implies re‐emission of 36Cl from the snowpack that is not observed at Talos Dome. The 36Cl/Cl‐ ratio may be used to discriminate the stratospheric anthropogenic 36Cl source from the tropospheric natural 36Cl source, which allows us to discuss the immobile vs. mobile 36Cl in the Vostok snowpack.
Featured image credit: @mattpalmer/Unsplash

Thanks to: https://watchers.news

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum