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Tag Archives: Geophysics
Railways could double as a tool for probing Earth’s shallow crust
Seismologists prospect for mineral deposits in Canada by recording the humming vibrations from freight trains. Continue reading
Real-Time Measurements of Earth’s Spin and Tilt
An array of ring lasers provides the first continuous measurement of Earth’s motion from a single location. Continue reading
Seafloor avalanches travel fast and far
Acoustic measurements of sediment concentration quantify the wide-reaching influence of turbidity currents. Continue reading
Pressure alters rock magnetization
A rock buried in Earth’s crust or a meteorite compressed on impact may end up with increased magnetization. Continue reading
Monitoring Volcanic Eruptions Using Lightning
Volcanologist Alexa Van Eaton explains the origins of electrical activity in volcanic ash plumes and why it sometimes leads to detectable lightning. Continue reading
Real-time observations explain magma dynamics of Kilauea’s 2018 eruption
Piston-like caldera collapses drove episodic lava flows far from the summit. Continue reading
Plants slow river migration
Rivers in unvegetated landscapes migrate an order of magnitude faster than their vegetated counterparts. Continue reading
Volcano topography can distort ground deformation data
Cliff-like features could explain the anomalous measurements taken by tiltmeters deployed at Hawaii’s Kilauea and other volcanoes. Continue reading
Posted in Physics Today
Tagged Geophysics, Magma, Natural Hazards, Physics Today, Volcanology
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Measurements of elusive mineral could explain mantle discontinuity
A predicted phase transition shows up in high-pressure experiments. Continue reading
Mineral measurements could explain mantle seismology
A predicted phase transition shows up in high-pressure experiments. Continue reading
Posted in Physics Today
Tagged Earth Sciences, Geophysics, Physics Today, Seismology
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