Scientists present a refined multi-method geomagnetic polarity time scale for the Late Cretaceous through the Eocene.
Journal of Geophysical Research: Solid Earth
Posted inResearch Spotlights
Shooting Light Pulses Down a 3-Kilometer Borehole Could Illuminate Seismic Hazards
Borehole distributed acoustic sensing (DAS) offers a more precise way to measure small earthquakes, if appropriate care is taken.
Posted inEditors' Highlights
Reading Fault Stress from the Rhythm of Earthquakes
T-rate, a new Bayesian tool that reconstructs changing fault stress from earthquake rates, reveals a late stress increase before the 2008 Reno–Mogul magnitude 5.1 earthquake.
Posted inEditors' Highlights
Enhancing Induced Seismicity: A New Window into Earthquake Physics
Controlled multi-day hydraulic stimulation experiments in the BedrettoLab aim to generate seismicity in order improve the understanding for rupture processes of natural and induced earthquakes.
Posted inEditors' Highlights
A Snapshot of Continental Crust in the Making
New seismic images from the Aleutian Arc show how active volcanic arcs may build new continental crust, highlighting the complex transition at multiple stages.
Posted inEditors' Highlights
Multi-Scale Fault Roughness Encapsulated in a Friction Law
A new rate- and roughness-dependent friction law incorporates multi-scale fault processes to reproduce earthquake fracture energy scaling.
Posted inEditors' Highlights
Pre-Existing Structure and Stress Shape Geothermal-Induced Seismicity
At China’s first Enhanced Geothermal System site, dense seismic observations, integrated with borehole data and stress modeling, reveal weak faults and scale-dependent control of stress and structure on induced seismicity.
Posted inEditors' Highlights
From Grains to Bands: Modeling Deformation in Porous Rocks
How do bands emerge in highly porous rocks? A study based on energy minimization reveals how microscale heterogeneity and stress conditions drive the formation of complex deformation bands.
Posted inResearch Spotlights
Navigating the Past with Ancient Stone Compass Needles
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.
Posted inEditors' Highlights
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.