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How Water Could Have Flowed on Mars

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The surface of Mars clearly shows what looks like evidence of flowing water: riverbeds, deltas, and the like. But these signs have been a puzzle – until now. The Weizmann Institute’s Dr. Itay Halevy and Brown University’s Dr. James Head III have identified a possible source: violent eruptions from massive volcanoes that periodically melted Mars’ ice.

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New View of Mount Rainier's Volcanic Plumbing

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By measuring how fast Earth conducts electricity and seismic waves, a University of Utah researcher and colleagues made a detailed picture of Mount Rainier’s deep volcanic plumbing and partly molten rock that will erupt again someday.

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Scientists Ready to Study Magma Formation Beneath Mount St. Helens

University and government scientists are embarking on a collaborative research expedition to improve volcanic eruption forecasting by learning more about how a deep-underground feeder system creates and supplies magma to Mount St. Helens.

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The Science Behind Volcanoes in Indonesia, & Ecuador

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UB Volcanologists Can Discuss Safety and Hazards Surrounding High-Risk Volcanoes in Populated Areas

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Volcano Discovered Smoldering Under a Kilometer of Ice in West Antarctica

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A temporary seismic array in Marie Byrd Land in West Antarctica recorded two bursts of activity in 2010 and 2011. Careful analysis of the events shows they originate from a subglacial volcano at the leading end of a volcanic mountain chain. The volcano is unlikely to erupt through the kilometer of ice that covers it but it will melt enough ice to change the way the ice in its vicinity flows.

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Water and Lava, but — Curiously — No Explosion

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A study finds that hollow, land-based lava pillars in Iceland likely formed in a surprising reaction where lava met water without an explosion. Such formations are common deep under the ocean, but have not been described on land, the lead researcher says.

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Molten Magma Can Survive in Upper Crust for Hundreds of Millennia

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Reservoirs of silica-rich magma – the kind that causes the most explosive volcanic eruptions – can persist in Earth's upper crust for hundreds of thousands of years without triggering an eruption, according to new University of Washington research.

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Scientists Want a Detailed Picture of Mount St. Helens' Plumbing

Earth scientists are laying plans for a two-year study covering a broad area of southwestern Washington state to develop a better understanding of how Mount St. Helens gets its supply of volcanic magma.

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Some Volcanoes 'Scream' at Ever-Higher Pitches Until They Blow Their Tops

Swarms of small earthquakes can precede a volcanic eruption, sometimes resulting in "harmonic tremor" resembling sound from some musical instruments. A new analysis shows tremor during a 2009 sequence at Alaska's Redoubt Volcano glided to substantially higher frequencies, then stopped abruptly just before six of the eruptions.

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