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Science

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Volcano, Science, Geology, Research

Heat Pulses in Magma Change How Scientists View the Inner Workings of Volcanoes

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ASU scientists develop technique to trace volcano heat pulses; may help better predict risk

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Michigan Tech, Chad Deering, Geoscience, Volcanology, New Zealand, Zircon, magma reservoir, Magma, Kaharoa

Forget the Red Hot Blob: Volcanic Zircon Crystals Give a New View of Magma

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The classic red teardrop of magma underneath a volcano peak is too simplistic. Magma chambers are chemically and physically complex structures that new evidence, published this week in Science, suggests may be cooler and more solid than expected.

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Mass Extinction, Climate Change, reflective aerosols

Death by Volcano?

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The discovery of anomalously high levels of mercury in rocks from the Ordivician geological period has led to a new interpretation of the ensuing mass extinction. A sequence of disturbances may have led to catastrophic cooling by reflective sulfate aerosols injected into the atmosphere by massive volcanism. The finding is important since aerosol cooling is under consideration as a way to temper global warming.

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Volcano, Volcanoes, Earth Sciences, Earth Science, Geoscience, Geosciences, Eruptions, X-Ray, X-rays, Synchrotron, Advanced Light Source, Berkeley, Lawrence Berkeley National Laboratory, Department Of Energy, LBNL, UC Berkeley, University of California, Berkeley, pumice, Ocean

How X-Rays Helped to Solve Mystery of Floating Rocks

Experiments at Berkeley Lab’s Advanced Light Source have helped scientists to solve a mystery of why some rocks can float for years in the ocean, traveling thousands of miles before sinking.

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Geoscience, Earth, lava, Archean, Geology, Hawaii, Galapagos

Researchers Discover Hottest Lavas That Erupted in Past 2.5 Billion Years From Earth’s Core-Mantle Boundary

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Researchers led by the Virginia Tech College of Science discovered that deep portions of Earth’s mantle might be as hot as it was more than 2.5 billion years ago.

Science

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Volcanoes, Volcanology, Research, Geology, Earth Science

Eruptions Examiner

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University of Iowa volcanologist Ingrid Ukstins spent two weeks collecting samples from Yasur, a continuously erupting volcano on Tanna, an island in the remote South Pacific archipelago of Vanuatu, to study its chemical composition and determine how the gasses it produces may be affecting people who live nearby.

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Michigan Tech, Simon Carn, Volcano, sulfur dioxide, Remote Sensing, NASA

Volcano Breath: Measuring Sulfur Dioxide From Space

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A number of volcanoes around the world continuously exhale gases. Of these, sulfur dioxide is the easiest to detect from space and now researchers have created the first global map of SO2 plumes from volcanoes.

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National Geographic Supports Volcano Research in Chile

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As planning continues for humanity’s first visit to Mars, scientists still have much to learn about the planet’s physical makeup. By comparing current satellite images to similar shots of Earth, they are coming to understand how volcanic activity shaped the Red Planet, and extrapolating lessons learned to address concerns closer to home.

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New Study Estimates Frequency of Flight-Disrupting Volcanic Eruptions

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Holidaymakers concerned about fresh volcanic eruptions causing flight-disrupting ash clouds across Northern Europe might be reassured by a study setting out the first reliable estimates of their frequency

Science

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Seismology, Plate Tectonics, Madagascar

What's Up with Madagascar?

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The island of Madagascar off the coast of Africa was largely unexplored seismically until recently. The first broadband seismic images of the island help solve a longstanding mystery: why are there volcanoes far from any tectonic boundary?







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