The emerging field of magnetic microscopy allows scientists to reconstruct ancient magnetic fields from individual magnetic particles. A new study evaluates the accuracy of the technique.
Journal of Geophysical Research: Solid Earth
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How Sediment Magnetism Captures the South Atlantic Anomaly
Magnetic data from an ODP core deposited during normal secular variation (65-41 thousand years ago) off the Chilean margin help clarify geomagnetic field behavior in the South Atlantic Anomaly region.
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Taming the Seismicity Tsunami with a Scalable Bayesian Framework
By combining the power of artificial intelligence with advanced physics simulations, a new framework called “SPIDER” allows us to map seismic activity with unprecedented clarity.
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Tides Generate Detectable Electrical Signals in Coastal Aquifers
Spontaneous potentials show possibility for monitoring coastal saltwater intrusion.
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A New Way to Measure Quartz Strength at High Pressure
Direct stress measurements inside deforming quartz reveal how its strength changes with temperature, improving models of continental crust deformation.
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Visualizing and Hearing the Brittle–Plastic Transition
Simultaneous optical, mechanical, and acoustic measurements reveal that brittle microcracking and crystal-plastic twinning in calcite generate distinguishable acoustic signals.
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Kyanite Exsolution Reveals Ultra-Deep Subduction of Continents
Laboratory experiments provide the first experimental evidence that continental rocks can be subducted to depths greater than 300 kilometers and return to the surface.
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Detecting Remagnetization with Quantum Diamond Microscopy
Scientists reconstruct the magnetization timeline of serpentinized rocks from the Troodos ophiolite by investigating remanent magnetization-carrying structures with a Quantum Diamond Microscope.
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Are We Really Seeing More Foreshocks with Enhanced Catalogs?
Different definitions and selection methods can lead to large differences in estimated foreshock rates; however, robust statistical method shows that foreshock rates are similar between standard and enhanced catalog.
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Frictional Properties of the Nankai Accretionary Prism
A database of frictional properties from IODP drilling materials explores the range of slip spectrum and the generation of slow to fast earthquakes in the Nankai subduction zone in light of mineralogy.