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Geology & Geophysics


Human-Engineered Changes on Mississippi River Increased Extreme Floods

Human-Engineered Changes on Mississippi River Increased Extreme Floods

Over the last century, many of the world’s major rivers have been modified for the purposes of flood control, power generation, and commercial navigation. A new study out of Woods Hole Oceanographic Institution suggests that engineering modifications to the Mississippi River interact with the have increased the risk of extreme floods to unprecedented levels.

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How Is the Seafloor Made?

How Is the Seafloor Made?

An ultrasound for the Earth? Using sound waves, a graduate student peers into the crystalline texture of the tectonic plates that cover our planet’s surface.

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Unearthing Long-Gone Hurricanes

Unearthing Long-Gone Hurricanes

A graduate student at Woods Hole Oceanographic Institution tracks a trail of clues left behind on the seafloor by hurricanes as they stream across the ocean.

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A Double Whammy for Corals

A Double Whammy for Corals

Scientists know that gradually rising ocean temperatures can push corals past a threshold and cause them to bleach. But combine this chronic stress with an acute short-term weather shift, and […]

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Taking Earth’s Inner Temperature

Taking Earth’s Inner Temperature

Woods Hole Oceanographic Institution wasn’t an obvious fit for Emily Sarafian.

“I always felt a little out of place here, because I don’t study the ocean, really,” said Sarafian, a recent […]

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A Close-up Look at a Rare Underwater Eruption

A Close-up Look at a Rare Underwater Eruption

A new paper published January 10, 2018, in the journal Science Advances describes the first up-close investigation of the largest underwater volcanic eruption of the past century. The international research team led by the University of Tasmania and the Woods Hole Oceanographic Institution (WHOI) used the autonomous underwater vehicle (AUV) Sentry and the remotely operated vehicle (ROV) Jason to explore, map, and collect erupted materials from the Havre volcano during a 2015 expedition. They found that the eruption was surprising in many ways.

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Pop Goes the Seafloor Rock

Pop Goes the Seafloor Rock

WHOI scientists used the human-occupied submersible Alvin and the autonomous underwater vehicle Sentry to explore a surprising discovery: gas-filled volcanic rocks on the seafloor that “pop” when brought up to the surface.

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The Hot Spot Below Yellowstone Park

The Hot Spot Below Yellowstone Park

WHOI scientist Rob Sohn brought an arsenal of deep-sea technology normally used to explore the seafloor to the bottom of Yellowstone Lake, where a team of researchers investigated the subsurface geothermal activity hidden from view in the national park.

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Fresh Water Below the Seafloor?

Fresh Water Below the Seafloor?

Using a new method to distinguish fresh water from oil or salt water, scientists are exploring beneath the continental shelf off New England to look for large pockets of trapped fresh water. This water may be continually filling from groundwater flowing from land or, alternatively, may have been left behind by ice ages glaciers.

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Blue Holes and Hurricanes

Scientists are digging into clues that settle into sinkholes in the seafloor to learn about hurricane patterns in the past and in the future.

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Taking Earth’s Inner Temperature

Taking Earth’s Inner Temperature

A new WHOI study led by WHOI suggests the mantle—the mostly solid, rocky part of Earth’s interior that lies between its super-heated core and its outer crustal layer—may be hotter than previously believed. The surprising finding could change how scientists think about many issues in Earth science including how ocean basins form.

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More Floods & Higher Sea Levels

More Floods & Higher Sea Levels

A research team predicts potentially big changes within the next century that would have significant impacts on those who live on or near the coast.

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WHOI Geologist Henry Dick Named AAAS 2016 Fellow

Henry Dick

Henry Dick of the Woods Hole Oceanographic Institution (WHOI) has been named a Fellow of the American Association for the Advancement of Science (AAAS). Election as an AAAS Fellow is an honor bestowed upon association members by their peers.

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Life Dwells Deep Within Earth’s Crust

Life Dwells Deep Within Earth's Crust

Aboard a drillship in the Indian Ocean, geologists pursued their mission to bore a hole thousands of feet through the seafloor to reach the Moho, the mysterious and never-before-penetrated boundary […]

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Attracted to Magnetics

Attracted to Magnetics

Maurice Tivey has probably endured more than a few bad puns, like the one in our headline, after he tells people what he does for a living. A geologist at […]

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The Quest for the Moho

The Quest for the Moho

For more than a century, scientists have made several attempts to drill a hole through Earth’s ocean crust to an interior layer of rock in Earth’s interior called the mantle.

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Mummified Microbes

Mummified Microbes

Scientists have found evidence that microbes can thrive deep below the seafloor—sustained by chemicals produced by reactions between seawater and rocks in Earth’s mantle.

 It’s difficult to gain direct access to […]

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Can Animals Live Without Oxygen?

Can Animals Live Without Oxygen?

In 2010, a research team garnered headlines when it published evidence of finding the first animals living in oxygen-free conditions at the bottom of the sea. But a new study […]

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