A new study finds that Earth’s magnetic field intensity varied significantly during the Cretaceous Normal Superchron, providing insights into the operation of the geodynamo during superchrons.
Bjarne S. G. Almqvist
Posted inEditors' Highlights
The Restless Geomagnetic Field Over the Past 70,000 Years
Detailed paleomagnetic records from Black Sea sediments reveal intricate changes in the field during geomagnetic excursions.
Posted inEditors' Highlights
A Thermochemical Recording Mechanism of Earth’s Magnetic Field
A laboratory study assesses thermochemical remanence as a reliable paleointensity recorder, which could open new venues for studying Earth’s ancient magnetic field.
Posted inEditors' Highlights
Laboratory Study Probes Triggering Mechanisms of Earthquakes
A new experimental technique traces the state of a shearing fault gouge and shows for the first time how friction of a fault surface can change as a function of varying normal stress.
Posted inEditors' Highlights
Seismic Anisotropy Due to a Compositionally Layered Mantle
Investigating the role of layered rocks and compositional banding on mineral scale in generating seismic anisotropy in the mantle.
Posted inEditors' Vox
The Earth’s Elastic Crust
A recent paper in Reviews of Geophysics discussed how the mineral composition and microfabric of the continental crust influences its seismic properties.