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The ashes of Mt. St. Helens

The massive eruption of Mt. St. Helens 35 years ago is one of the largest ever seen in North America. LMU volcanologists now report a retrospective analysis of salts leached from the ash deposited by the ...

dateJun 26, 2015 in Earth Sciences
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Iron: A biological element?

Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and a half billion years ago.

dateJun 25, 2015 in Earth Sciences
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Understanding subduction zone earthquakes

The 26 December 2004 Mw ~9.2 Indian Ocean earthquake (also known as the Sumatra-Andaman or Aceh-Andaman earthquake), which generated massive, destructive tsunamis, especially along the Aceh coast of northern ...

dateJun 24, 2015 in Earth Sciences
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Exceptional view of deep Arctic Ocean methane seeps

Close to 30,000 high definition images of the deep Arctic Ocean floor were captured on a recent research cruise. This gives us an exclusive insight into the most remote sites of natural methane release in ...

Uplifted island

The island Isla Santa María in the south of central Chile is the document of a complete seismic cycle.

NASA image: Washington wildfire in California

NASA's Aqua satellite recently spotted smoke from the Washington Fire south of Carson City, Nevada. The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument that flies aboard NASA's Aqua satellite ...

NASA image: Night-shining clouds

In the late spring and summer, unusual clouds form high in the atmosphere above the polar regions of the world. As the lower atmosphere warms, the upper atmosphere gets coooler, and ice crystals form on meteor ...

Scientists make new estimates of the deep carbon cycle

Over billions of years, the total carbon content of the outer part of the Earth—in its upper mantle, crust, oceans, and atmospheres—has gradually increased, scientists reported this month in the journal Proceedings of ...

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The discovery of the molecule Si-C-Si in space
WikiLeaks says NSA spied on French business

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