Tiny zircon crystals are revealing that Earth’s earliest history may have included surprisingly complex tectonic activity.
A comprehensive examination of the oldest minerals on the planet, microscopic grains of zircon more resistant than diamond, has provided the strongest chemical evidence to date that processes of ...
Old crystals found in Western Australia are drawing fresh attention from geologists studying how the planet first took shape.
Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought. New research led by scientists at the University of Wisconsin–Madison has ...
Add Yahoo as a preferred source to see more of our stories on Google. The view from the Nuvvuagittuq greenstone belt, Nunavik, Quebec, Canada. - Jonathan O’Neil A rocky outcrop in a remote corner of ...
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Hadean zircons reveal crust recycling and continent formation more than 4 billion years ago
Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought. New research led by scientists at the University of Wisconsin–Madison has ...
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What Hadean Earth was really like before life began
Long before oceans stabilized and continents formed, Hadean Earth was a world of molten rock, relentless asteroid impacts, and toxic atmospheres. Surface temperatures were extreme, and the young ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: In an investigation to find out what sparked life on ...
Intro -- Preface -- References -- Contents -- 1 Why Hadean? -- Abstract -- 1.1 Introduction -- 1.2 Organization of This Book -- 1.2.1 A Brief Overview -- 1.2.2 Chapter Themes -- 1.3 Defining the ...
New ANU research is set to radically overturn the conventional wisdom that early Earth was a hellish planet barren of continents. An international research team led by Professor Mark Harrison of the ...
The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years. The rare remnants that ...
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