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Sampling the deep graveyard of Earth’s earliest crust

In an international collaboration, Earth scientists at the University of Cologne and Freie Universität Berlin discovered that some magmas on Earth, which made their...

Giant impact crater in Greenland occurred a few million years after...

Danish and Swedish researchers have dated the enormous Hiawatha impact crater, a 31 km-wide meteorite crater buried under a kilometer of Greenlandic ice. The...

New technique unlocks ancient history of Earth from grains of sand

Curtin researchers have developed a new technique by studying the age of ancient grains of sand from beaches, rivers and rocks from around the...

Traces of life in the Earth’s deep mantle

The rapid development of fauna 540 million years ago has permanently changed the Earth -- deep into its lower mantle. A team led by...

Secondary cratering on Earth: The Wyoming impact crater field

Several dozen small impact craters, 10-70-m in size, have been discovered in southeastern Wyoming. A team of U.S. and German geoscientists found these ancient...

Fiber-optic cables can produce high-resolution underground maps

How much the ground moves during an earthquake strongly depends on properties of rock and soil just beneath Earth's surface. Modeling studies suggest that...

Like diamonds, clay soils are forever

When you walk about your yard on a wet day, do your shoes stick in the mud? Could you make ceramic pots out of...

Researchers recreate deep-Earth conditions to see how iron copes with extreme...

Far below you lies a sphere of solid iron and nickel about as wide as the broadest part of Texas: the Earth's inner core....

Radiocarbon is key to understanding Earth’s past

Radiocarbon records are critical to understanding the history of Earth's climate, magnetic field, and the Sun's activity, say researchers. In an article published today (November...

Some of the world’s oldest rubies linked to early life

While analyzing some of the world's oldest coloured gemstones, researchers from the University of Waterloo discovered carbon residue that was once ancient life, encased...

Earth’s ‘solid’ inner core may contain both mushy and hard iron

3,200 miles beneath Earth's surface lies the inner core, a ball-shaped mass of mostly iron that is responsible for Earth's magnetic field. In the...

Geologists dig into Grand Canyon’s mysterious gap in time

A new study led by the University of Colorado Boulder reveals the complex history behind one of the Grand Canyon's most well-known geologic features:...

Geologists take Earth’s inner temperature using erupted sea glass

If the Earth's oceans were drained completely, they would reveal a massive chain of undersea volcanoes snaking around the planet. This sprawling ocean ridge...

Earth’s climate life story, 3 billion years in the making

One of Earth's greatest mysteries is how it transformed itself, ever so gradually, from a barren ball of rock into a launching pad for...

A rock with many perspectives

The Alum Shale of Northern Europe not only has an eventful history of formation, connected with the microcontinent Baltica, it also holds great potential...

The Earth has a pulse — a 27.5-million-year cycle of geological...

Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a "pulse," according to a new study published in the journal...

Earth-like biospheres on other planets may be rare

A new analysis of known exoplanets has revealed that Earth-like conditions on potentially habitable planets may be much rarer than previously thought. The work...

Earth’s oldest minerals date onset of plate tectonics to 3.6 billion...

Scientists led by Michael Ackerson, a research geologist at the Smithsonian's National Museum of Natural History, provide new evidence that modern plate tectonics, a...

Clues from soured milk reveal how gold veins form

For decades scientists have been puzzled by the formation of rare hyper-enriched gold deposits in places like Ballarat in Australia, Serra Palada in Brazil,...

Where on Earth is all the water?

High-temperature and high-pressure experiments involving a diamond anvil and chemicals to simulate the core of the young Earth demonstrate for the first time that...

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