Search Results for: Ocean

The lower mantle can be oxidized in the presence of water

“One of the major lower mantle compositions, ferropericlase (Mg,Fe)O, turns into a pyrite-type structure upon meeting water. This intriguing chemical reaction…

NASA's ICESat-2 measures Arctic Ocean's sea ice thickness, snow cover

Initial results from NASA's new Ice Cloud and land Elevation Satellite-2 (ICESat-2) suggest that the sea ice has thinned by as much as 20% since the end of the…

Benthos in the Antarctic Weddell Sea in decline

Over the past quarter-century, changes in Antarctic sea-ice cover have had profound impacts on life on the ocean floor. As biologists from the Alfred Wegener…

Shrinking snowcaps fuel harmful algal blooms in Arabian sea

A uniquely resilient organism all but unheard of in the Arabian Sea 20 years ago has been proliferating and spreading at an alarming pace, forming thick,…

Simulated deep-sea mining affects ecosystem functions at the seafloor

Polymetallic nodules and crusts cover many thousands of square kilometres of the world's deep-sea floor. They contain mainly manganese and iron, but also the…

Does accelerated subduction precede great earthquakes?

A strange reversal of ground motion preceded two of the largest earthquakes in history. This is the result of a new study led by Jonathan Bedford of GFZ German…

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