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Science

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Plate Techtonics, Mantle, Geology, Olivine, Earthquakes, Subduction zone, Volcano

Measuring a Crucial Mineral in the Mantle

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New research led by the University of Delaware resolves debate over the strength of olivine, the most abundant mineral in the Earth's mantle. Measuring olivine’s strength is critical to understanding how strong tectonic plates are, which matters to how plates break and create subduction zones.

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Tulane Student Hopes Research Will Lead to Protection From Volcanos, Earthquakes

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East Africa may be a long way from the Crescent City but it is top of mind for Tulane PhD student Sarah Oliva, who is studying data from volcanoes and earthquakes in that region. Her goal is a better understanding of how a 3,000-kilometer long deep valley– the East African rift system— formed. Ultimately, she hopes her research will enable her to work with scientists and help governments protect residents living near the rift.

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Volcanoes, Global Warming, CO2, Emissions, North Atlantic, PETM, lava, Eruptions, Greenland, Iceland

Volcanic Carbon Dioxide Drove Ancient Global Warming Event

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New research, led by the University of Southampton and involving a team of international scientists, suggests that an extreme global warming event 56 million years ago was driven by massive CO2 emissions from volcanoes, during the formation of the North Atlantic Ocean.

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Tiny particles, P, me, V, micro-scale, micro-scale 3D models, Object Physics, Object measurement, Mount St. Helens, Volcano Sciences, Volcanos, Ash

Innovative Way to Understand Nature of an Entire Tiny Particle

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New research from the University of New Hampshire has led to the development of a novel technique to determine the surface area and volume of small particles, the size of a grain of sand or smaller. Due to their tiny size, irregular shape and limited viewing angle, commonly used microscopic imaging techniques cannot always capture the whole object’s shape often leaving out valuable information that can be important in numerous areas of science, engineering and medicine.

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Roman, Roman concrete, Concrete, Cement, Berkeley, University of California, Berkeley, UC Berkeley, Lawrence Berkeley National Laboratory, LBNL, Berkeley Lab, Chemistry, pumice, Volcanology, Earth Science, Volcano, Italy, Ancient, Archaeology

New Studies of Ancient Concrete Could Teach Us to Do as the Romans Did

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A new look inside 2,000-year-old Roman concrete has provided new clues to the evolving chemistry and mineral cements that allow ancient harbor structures to withstand the test of time.

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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.







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