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Tag: Earth

New details emerge on temperature, mobility of earth’s lower crust in...

Everything on the surface of the Earth rests on massive tectonic plates that resemble a jelly sandwich, with two rigid pieces -- the upper...

Between the lines: Tree rings hold clues about a river’s past

Hydrologists are looking centuries into the past to better understand an increasingly uncertain water future. By analyzing centuries-old growth rings from trees in the Intermountain...

Which came first: Complex life or high atmospheric oxygen?

We and all other animals wouldn't be here today if our planet didn't have a lot of oxygen in its atmosphere and oceans. But...

Computing the way to the center of the Earth

In order to more fully comprehend the complexities of Earth's interior, humanity has to dig deep -- literally. To date, scientists have been able...

Ancient weakening of Earth’s crust explains unusual intraplate earthquakes

New research reveals that mysterious pockets of earthquake activity in the middle of North America all have one thing in common: Earth's crust in...

Discovery about rare nitrogen molecules offers clues to makeup of life-supporting...

A team of scientists using a state-of-the-art UCLA instrument reports the discovery of a planetary-scale "tug-of-war" of life, deep Earth and the upper atmosphere...

Meteorite analysis shows reduced salt is key in Earth’s new recipe

Scientists have found the halogen levels in the meteorites that formed the Earth billions of years ago are much lower than previously thought. The research...

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...

Collisions after moon formation remodeled early Earth

Southwest Research Institute scientists recently modeled the protracted period of bombardment following the Moon's formation, when leftover planetesimals pounded the Earth. Based on these...

Less life: Limited phosphorus recycling suppressed early Earth’s biosphere

The amount of biomass -- life -- in Earth's ancient oceans may have been limited due to low recycling of the key nutrient phosphorus,...

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...

Mysterious deep-Earth seismic signature explained

New research on oxygen and iron chemistry under the extreme conditions found deep inside the Earth could explain a longstanding seismic mystery called ultralow...

How the Earth stops high-energy neutrinos in their tracks

For the first time, a science experiment has measured Earth's ability to absorb neutrinos -- the smaller-than-an-atom particles that zoom throughout space and through...

Water cooling for the Earth’s crust

How deep can seawater penetrate through cracks and fissures into the seafloor? By applying a new analysis method, an international team of researchers has...

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...

A popular tool to trace Earth’s oxygen history can give false...

For researchers pursuing the primordial history of oxygen in Earth's atmosphere, a new study might sour some "Eureka!" moments. A contemporary tool used to...

When water met iron deep inside the Earth, did it create...

Reservoirs of oxygen-rich iron between the Earth's core and mantle could have played a major role in Earth's history, including the breakup of supercontinents,...

Site of asteroid impact changed the history of life

An asteroid, also known as the Chicxulub Impactor, hit Earth some 66 million years ago, causing a crater 180 km wide. The impact of...

Why did the Earth’s ancient oceans disappear?

We think of oceans as being stable and permanent. However, they move at about the same speed as your fingernails grow. Geoscientists at CEED,...

How a ‘shadow zone’ traps the world’s oldest ocean water

New research from an international team has revealed why the oldest water in the ocean in the North Pacific has remained trapped in a...

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