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Artist's rendition of Earth, cut away to reveal individual layers, including the deep mantle. Image credit: Mingming Li/ASU
Shocked meteorites provide clues to Earth’s lower mantle

4 days ago

Deep below Earth’s surface lies a thick rocky layer called the mantle, which makes up the majority of…
How long will a volcanic island live?

January 6, 2020

Plate tectonics and mantle plumes set the lifespan of volcanic islands like Hawaii and the Galapagos. When a…
Would A Deep-Earth Water Cycle Change How We Understand Planetary Evolution?

December 17, 2019

Every school child learns about the water cycle—evaporation, condensation, precipitation, and collection. But what if there were a…
Planetary Collisions Can Drop the Internal Pressures in Planets

September 5, 2019

Researchers present a new paradigm for understanding how pressures in planets evolve. A new study from Caltech shows…
Scientists discover a new way volcanoes form

May 22, 2019

Geoscientists have discovered the first direct evidence that material from deep within Earth’s mantle transition zone — a…
More detailed picture of Earth’s mantle

May 21, 2019

According to a new analysis of cores drilled through the ocean crust, the mantle is made up of…
There and back again: Mantle xenon has a story to tell

August 17, 2018

The Earth has been through a lot of changes in its 4.5 billion year history, including a shift…
What makes diamonds blue? Boron from oceanic crustal remnants in Earth’s lower mantle

August 2, 2018

Blue diamonds—like the world-famous Hope Diamond at the National Museum of Natural History—formed up to four times deeper…
New model reveals rips in Earth’s mantle layer below southern Tibet

August 1, 2018

Seismic waves are helping researchers uncover the mysterious subsurface history of the Tibetan Plateau, possibly lending insight to…
Better model of water under extreme conditions could aid understanding of Earth’s mantle

June 25, 2018

Deep inside the Earth exist pockets of water —but the liquid there isn’t like the water on the…
Catching Mantle Plumes by Their Magma Tail

May 1, 2018

Hawaii’s volcanos stand as silent sentinels. They guard the secret of how they formed, thousands of miles away…
Argonne’s powerful X-rays key to confirming water source deep below Earth’s surface

March 24, 2018

A study published in Science last week relies on extremely bright X-ray beams from the U.S. Department of Energy’s (DOE)…
Diamonds From the Deep: Study Suggests Water May Exist in Earth’s Lower Mantle

March 15, 2018

Researchers study crystallized water trapped in diamonds that formed hundreds of miles beneath Earth’s surface. The molecular structure…
Modern volcanism tied to events occurring soon after Earth’s birth

March 1, 2018

Plumes of hot magma from the volcanic hotspot that formed Réunion Island in the Indian Ocean rise from…
Unusual melting behavior of mantle mineral may dictate deep flow

December 11, 2017

The unusual melting behavior of the second most abundant mineral in the Earth may affect key processes deep…
Clay mineral waters Earth’s mantle from inside

December 4, 2017

The first observation of a super-hydrated phase of the clay mineral kaolinite could improve the understanding of processes…
Research reveals the scale at which Earth’s mantle composition varies

November 24, 2017

New research by Brown University geochemists provides new insights on the scale at which Earth’s mantle varies in…
Mysterious deep-Earth seismic signature explained

November 23, 2017

New research on oxygen and iron chemistry under the extreme conditions found deep inside the Earth could explain…
Conductivity key to mapping water inside Earth

July 25, 2017

Hydrogen at elevated temperature creates high electrical conductivity in the Earth’s mantle. New work by Lawrence Livermore National…
Rock Samples Indicate Water is Key Ingredient for Crust Formation

May 3, 2017

By examining the cooling rate of rocks that formed more than 10 miles beneath the Earth’s surface, scientists…
Study: Early organic carbon got deep burial in mantle

April 26, 2017

Rice University petrologists who recreated hot, high-pressure conditions from 60 miles below Earth’s surface have found a new…
“Nesting doll” minerals offer clues to Earth’s mantle dynamics

April 11, 2017

Recovered minerals that originated in the deep mantle can give scientists a rare glimpse into the dynamic processes…
Drawn from the Deep

February 7, 2017

The Earth’s mantle — the layer between the crust and the outer core — is home to a…
Plate tectonics go to the core

February 1, 2017

The heat from Earth’s core has a significant effect on tectonic plate movement. The new research challenges the…
Deep mantle chemistry surprise: Carbon content not uniform

January 17, 2017

Even though carbon is one of the most-abundant elements on Earth, it is actually very difficult to determine…
Researcher targeting mysteries of deep Earth

November 22, 2016

Water covers about 70 percent of the Earth’s surface, but scientists also want to know how much lies…
Buried oxygen rose to the occasion as Earth’s early atmosphere formed

August 2, 2016

Oxygen buried deep underground in minerals may have prompted the churning of Earth’s rocky mantle billions of years…
Sending crude oil into space to study Earth’s depths

April 7, 2016

Containers of highly pressurised crude oil will be launched into space from China next week to help improve…
Twin Studies Provide First Explanations for Boundary Within Earth’s Mantle

December 21, 2015

Earth’s mantle, the large zone of slow-flowing rock that lies between the crust and the planet’s core, powers…
Surprise: Stretchy Slabs in Deep Earth

November 25, 2015

New observations from an international geophysics team, including Carnegie’s Lara Wagner, suggest that the standard belief that the…
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