Using a form of krypton, a chemical element created when cosmic rays hit the planet, scientists have developed a new technique to more accurately date ancient Antarctic ice which could help them understand the forces that have triggered ice ages, according to a study published in Proceedings of the National Academy of Sciences.
“The ultimate thing we would like to know is what the climate was like in the past…because that helps us understand what the climate might be like in the future,” said Edward Brook, co-author of the report.
Krypton isotope called krypton-81 decays slowly while krypton 83 doesn't decay.
The proportion of both isotopes gives researchers an estimation of the age of the ice.
"That is very exciting because a lot of interesting things happened with the Earth's climate prior to 800,000 years ago that we currently cannot study in the ice core record." What is Krypton dating?Scientists have successfully dated 120,000-year-old Antarctic ice using a new method called radiometric krypton dating.The technique will allow them to study ice that is more than 1 million years old, which will reveal important details about the planet’s ancient climate cycles, according to a report released Monday.They are dated late Permian, 260 million years ago, one of many times when Earth appears to be have been much warmer than today.From a catastrophist point of view, there are many questions raised by the Antarctic forest.