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Earth's dynamic interior: Multiple compositional components of Earth's deep mantle carried up to surface

Academics / General Science : ScienceDaily: Science Society

Seeking to better understand the composition of the lowermost part of Earth's mantle, located nearly 2,900 kilometers (1,800 miles) below the surface, researchers have developed new simulations that depict the dynamics of deep Earth...

It's elemental: Accurate analysis of Earth's core with molecular dynamics simulation

Academics / General Science : Physorg: Other Sciences

(Phys.org)—Accurately determining the relative percentages of the elements comprising the Earth's core and mantle which formed early – that is, within 30 Ma (megaannum, or million years) after the solar system itself formed – are ex...

Just what sustains Earth's magnetic field anyway?

Academics / General Science : ScienceDaily: Science Society

Earth's magnetic field shields us from deadly cosmic radiation, and without it, life as we know it could not exist here. The motion of liquid iron in the planet's outer core, a phenomenon called a 'geodynamo,' generates the field. B...

A New Model for how the Newly Formed Earth's Crust, Mantle and Core Differentiated

Biology / Paleontology : The Dragon's Tales

Early differentiation of the bulk silicate Earth as recorded by the oldest mantle reservoirAuthors:Xuan-Ce Wang, Zheng-Xiang Li, Xian-Hua LiAbstract:An emerging challenge for understanding the Earth system is to determine the relati...

Earth has had a Magnetic Field Since the Hadean

Biology / Paleontology : The Dragon's Tales

A Hadean to Paleoarchean geodynamo recorded by single zircon crystalsAuthors:Tarduno et alAbstract:Knowing when the geodynamo started is important for understanding the evolution of the core, the atmosphere, and life on Earth. We re...

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