Where on Earth is all the water? : comparemela.com

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IMAGE: High-resolution chemical analyses with secondary ion mass spectroscopy showed the abundance of water left in silicate melt after compressing with liquid iron metal.
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Credit: © 2021 Tagawa et al.
High-temperature and high-pressure experiments involving a diamond anvil and chemicals to simulate the core of the young Earth demonstrate for the first time that hydrogen can bond strongly with iron in extreme conditions. This explains the presence of significant amounts of hydrogen in the Earth's core that arrived as water from bombardments billions of years ago.
Given the extreme depths, temperatures and pressures involved, we are not physically able to probe very far into the earth directly. So, in order to peer deep inside the Earth, researchers use techniques involving seismic data to ascertain things like composition and density of subterranean material. Something that has stood out for as long as these kinds of measurements have been taking place is that the core is primarily made of iron, but its density, in particular that of the liquid part, is lower than expected.

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Bunkyo Ku , Tokyo , Japan , Shunpei Yokoo , Yasuo Ohishi , Rohan Mehra , Kei Hirose , Shoh Tagawa , John Hernland , Naoya Sakamoto , Hisayoshi Yurimoto , Nature Communications , Department Of Earth , University Of Tokyo , School Of Science , Division For Strategic Public Relations , Planetary Science , Professor Kei Hirose , Strategic Public Relations , புங்கயோ கு , டோக்கியோ , ஜப்பான் , ரோஹன் மெஹ்ரா , இயற்கை தகவல்தொடர்புகள் , துறை ஆஃப் பூமி , பல்கலைக்கழகம் ஆஃப் டோக்கியோ , பள்ளி ஆஃப் அறிவியல் , பிரிவு க்கு மூலோபாய பொது உறவுகள் , கிரகங்கள் அறிவியல் , மூலோபாய பொது உறவுகள் ,