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Tag: Mantle

Probing the origin of the mantle’s chemically distinct ‘scars’

The composition of Earth's mantle was more shaped by interactions with the oceanic crust than previously thought, according to work from Carnegie's Jonathan Tucker...

Geologists publish new findings on carbonate melts in Earth’s mantle

Geologists from Florida State University's Department of Earth, Ocean and Atmospheric Science have discovered how carbon-rich molten rock in the Earth's upper mantle might...

Remixed mantle suggests early start of plate tectonics

New Curtin University research on the remixing of Earth's stratified deep interior suggests that global plate tectonic processes, which played a pivotal role in...

Heavy iron isotopes leaking from Earth’s core

Earth’s molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet. The boundary between the liquid iron core...

Is the Earth’s inner core oscillating and translating anomalously?

A theoretical mineral physics approach based on the ab initio methods was adopted to determine the viscosity of hexagonal, close-packed iron at the extreme...

Heat transport property at the lowermost part of the Earth’s mantle

Lattice thermal conductivities of MgSiO3 bridgmanite and postperovskite (PPv) phases under the Earth's deepest mantle conditions have been determined by quantum mechanical computer simulations....

Scientists Find Iron ‘Snow’ in Earth’s Core

The Earth's inner core is hot, under immense pressure and snow-capped, according to new research that could help scientists better understand forces that affect...

New study suggests gigantic masses in Earth’s mantle untouched for more...

Ancient, distinct, continent-sized regions of rocks, isolated since before the collision that created the Moon 4.5 billion years ago, exist hundreds of miles below...

Geochemists measure new composition of Earth’s mantle

What is the chemical composition of the Earth's interior? Because it is impossible to drill more than about ten kilometres deep into the Earth,...

How Earth’s mantle is like a Jackson Pollock painting

In countless grade-school science textbooks, the Earth's mantle is a yellow-to-orange gradient, a nebulously defined layer between the crust and the core. To geologists, the...

Magma is the key to the moon’s makeup

For more than a century, scientists have squabbled over how Earth's moon formed. But researchers at Yale and in Japan say they may have...

Sound waves reveal enormous diamond cache deep in Earth’s interior

There may be more than a quadrillion tons of diamond hidden in the Earth's interior, according to a new study from MIT and other...

Better model of water under extreme conditions could aid understanding of...

Deep inside the Earth exist pockets of water, but the liquid there isn't like the water on the surface. When exposed to unimaginably high temperatures...

New insight into Earth’s crust, mantle and outer core interactions

A new study by the University of Liverpool, in collaboration with the Universities of Lancaster and Oslo, sheds light on a longstanding question that...

Unique diamond impurities indicate water deep in Earth’s mantle

A UNLV scientist has discovered the first direct evidence that fluid water pockets may exist as far as 500 miles deep into the Earth’s...

Do you know where your xenon is?

The paradox of the missing xenon might sound like the title of the latest airport thriller, but it's actually a problem that's stumped geophysicists...

Earth’s core and mantle separated in a disorderly fashion

Plumes of hot rock surging upward from the Earth's mantle at volcanic hotspots contain evidence that the Earth's formative years may have been even...

Trickle-down is the solution (to the planetary core formation problem)

Scientists have long pondered how rocky bodies in the solar system -- including our own Earth -- got their metal cores. According to research...

Research reveals the scale at which Earth’s mantle composition varies

New research by Brown University geochemists provides new insights on the scale at which Earth's mantle varies in chemical composition. The findings could help...

Clay mineral waters Earth’s mantle from the inside

The first observation of a super-hydrated phase of the clay mineral kaolinite could improve our understanding of processes that lead to volcanism and affect...

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