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Volcanoes Sound-Off on the Life-Cycles of Eruptions

Volcanoes emit a broad spectrum of sonic energy. In the case of basaltic eruptions, most of that acoustical energy in the infrasound range. A new study reveals that this low-frequency sound can give scientists an enhanced understanding of the behavior of volcanoes and a tool to monitor the lifecycles of their eruptions.

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popocatepetl, Mexico, Volcanoes, Volcano, Volcanology, Eruptions

Volcanologist Can Discuss Mexico’s Rumbling Popocatepetl Volcano

University at Buffalo volcanologist Michael Sheridan can discuss Mexico’s Popocatepetl volcano, which has entered a heightened phase of activity. Sheridan has been studying Popocatepetl for years.

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Una Fuente De Lava y Dos Volcanes: Estudiante de la Universidad De Cornell Conduce una Investigación Geofísica en Chile

Jennifer Jay es estudiante de postgrado en la Universidad de Cornell, estudiando la geofísica, o sea, la física de la Tierra, con una especialidad en el volcanismo de la cordillera de los Andes. Ella trabaja con el professor Mattew Pritchard y otro estudiante de postgrado, Scott Henderson. Dentro de pocos días, ellos viajarán a Chile para hacer una investigación geofísico de la región volcanica llamaba Lazufre. Trabajarán con un equipo de geofísicos de la Universidad de Alaska, Fairbanks, y unos colaboradores chilenos

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As Magma Rises Rapidly, Cornell Experts Monitor Ancient Uturuncu Volcano

Matt Pritchard, Cornell associate professor of geology, comments as part of an international effort to study Bolivia’s Uturuncu volcano, where the magma is uplifting rapidly. Uturuncu last erupted about 300,000 years ago.

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submar, Volcano, Eruption, lava, boninite, Subduction zone, Tectonic Plates, Ocean, Ocean Crust, Pacific Ocean

Fiery Volcano Offers Geologic Glimpse Into Land That Time Forgot -- with Video

The first scientists to witness molten lava from a deep sea volcano now report that the eruption was near a tear in the Earth’s crust that is mimicking the birth of a subduction zone. Earth’s current subduction zones are continually evolving but most formed 5 million to 200 million years ago.

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Jet Engines

Engineers to Examine the Effects of Volcanic Ash on Jet Engines

Engineers note that ash ingestion in jet engines can impede performance and pose serious dangers.

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Siberia, Kamchatka, Microbes, Bacteria, Carbon Monoxide, geothermal fields, volcanic gases , Great Oxidation Event, Uzon Caldera, Lassen Volcanic National Park

Siberian Hot Springs Reveal Ancient Ecology

Exotic bacteria that do not rely on oxygen may have played an important role in determining the composition of Earth’s early atmosphere, according to a theory that UChicago researcher Albert Colman of a volcanic crater in Siberia.

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volcanic ash, Volcano, Airplane, Jet Engines

Ceramic Coatings May Protect Jet Engines from Volcanic Ash

Researchers have discovered that a new class of ceramic coatings could offer jet engines special protection against volcanic ash damage.

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Yellowstone, Geophysics, Volcano, Supervolcano, Volcanism, geoelectric, Magnetotelluric, Imaging, Seismic, Computing, Plume, Hotspot, Electromagnetic Fields

Electric Yellowstone

ElectricPlume.jpg

University of Utah geophysicists made the first large-scale picture of the electrical conductivity of the plume of partly molten rock that feeds the Yellowstone supervolcano. The image suggests the plume is bigger than it appears in earlier images made with earthquake waves.

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Hawaii, Magma, Volcano, Thermal energy, Iceland, Magma chamber

Hot Stuff: Magma at Shallow Depth Under Hawaii

Researchers have found a new way to gauge the depth of the magma chamber that forms the Hawaiian Island volcanic chain, and determined that the magma lies much closer to the surface than previously thought.







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