Saturday, October 19, 2019
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An example of a Pallasite meteorite (from the Esquel fall) on display in the Vale Inco Limited Gallery of Minerals at the Royal Ontario Museum.
Earth

Meteorite strikes made life on Earth possible

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Depictions of large asteroids striking Earth, which, during parts of its early history, would have had a much thicker atmosphere than it does today. Credits: NASA with modifications by Stephen Mojzsis
Earth

A new timeline of Earth’s cataclysmic past

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A diagrammatic representation of the Earth in the Archaean showing subducted ocean floor carrying its chemical signature into the deep mantle. The signature which includes water and chlorine is preserved in melt inclusions contained within olivine and carried back up to surface within komatiite lava flows.
Earth

Ancient drop of water rewrites Earth’s history

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Study co-author Rob Coe and Trevor Duarte orienting cores from a lava flow site recording the Matuyama-Brunhes magnetic polarity reversal in Haleakala National Park, Hawaii, in 2015
Earth

Earth’s last magnetic field reversal took far longer than once thought

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Groundwater well drilling equipment in California's Central Valley. Photo Credit: Chad Ress
Earth

Drilling Deeper : A new study shows Americans are drilling deeper...

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The floormen (in yellow jackets) and drillers (in white booths in background) of Expedition 383 retrieve core barrels and sediment cores around the clock. Credit: Jenny Middleton/Lamont-Doherty Earth Observatory
Earth

How a drilling ship pulls cores from 2.5 miles below the...

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Zermatt in the Western Alps.
Earth

More ‘reactive’ land surfaces cooled the Earth down

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Earth
Earth

Building blocks of the Earth

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Canadian Rocky Mountains
Earth

Study provides new insight into origin of Canadian Rockies

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The comet 46P/Wirtanen on January 3, 2019.
Earth

A family of comets reopens the debate about the origin of...

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The rising Earth from the perspective of the moon.
Earth

Formation of the moon brought water to Earth

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Earth

Ammonium fertilized early life on Earth

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A mineral map of a cumulate mineral sample.
Earth

How Earth’s mantle is like a Jackson Pollock painting

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Bermuda has a unique volcanic past. About 30 million years ago, a disturbance in the mantle’s transition zone supplied the magma to form the now-dormant volcanic foundation on which the island sits.
Earth

From Earth’s deep mantle, scientists find a new way volcanoes form

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Subsidence in Tuscany
Earth

Monitoring Earth’s shifting land

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Credit: Density values from LithoRef18 (Afonso et al.) and gravity gradients from Bouman et al. (2016)
Earth

3D Earth in the making

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Subduction Zone - Earth
Earth

How life on Earth affected its inner workings

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A laser-heated diamond anvil cell is used to simulate the pressure and temperature conditions of Earth's core.
Earth

What does Earth’s core have in common with salad dressing?

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Polynya
Earth

Uncovering Polynya : Research unravels 43-year-old mystery in deep Antarctica

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diamonds formed from oceanic crust
Earth

Eclogitic diamonds formed from oceanic crust

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