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Up to 2% of Earth’s oldest mantle is made of diamond

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...

Molten magma can survive in upper crust for hundreds of millennia

Reservoirs of silica-rich magma – the kind that causes the most explosive volcanic eruptions – can persist in Earth's upper crust for hundreds of...

Big ice may explain Mars’ double-layer craters

Geologists from Brown University have developed a promising new explanation for a mysterious type of crater on the surface on Mars. Double-layered ejecta craters or...

Noble gases hitch a ride on hydrous minerals

The noble gases get their collective moniker from their tendency toward snobbishness. The six elements in the family, which includes helium and neon, don’t...

Geologists study mystery of ‘eternal flames’

"Eternal flames" fueled by hydrocarbon gas could shine a light on the presence of natural gas in underground rock layers and conditions that let...

Volcanic plumbing exposed

Two new studies into the "plumbing systems" that lie under volcanoes could bring scientists closer to predicting large eruptions. International teams of researchers, led by...

Climate changes faster than species can adapt

The ranges of species will have to change dramatically as a result of climate change between now and 2100 because the climate will change more than 100 times faster than the rate at which species can adapt, according to a newly pub...

Magma power for geothermal energy?

When a team of scientists drilling near an Icelandic volcano hit magma in 2009, they had to abandon their planned experiments on geothermal energy. But the mishap could point the way to an alternative source of geothermal power. "Because we drille...

Professor says volcanic eruptions in Costa Rica 'inevitable'

It might be 500,000 years or five years, but the Central Valley of Costa Rica will definitely experience major volcanic activity again, according to Phillip B. Gans, professor of geology at the University of California, Santa Barbara. He presented a study of volcanic rocks of Costa Rica in his recent talk at the annual meeting of the Geological Society of America.

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