The geomagnetic field changes regionally on centennial time scales. A recent study unlocks three historical archives from the “Four Corners” region (southwest USA) reconciling previous discrepancies.
Journal of Geophysical Research: Solid Earth
Posted inResearch Spotlights
Measuring Sea Level Rise Along the Coast
Scientists created a global map of vertical land motion to show how the solid ground is moving relative to the planet’s rising seas.
Posted inEditors' Highlights
Ice on a Deadline: More Stress Makes Ice Move Faster
Anyone seeing photographs of glacier and ice sheets from above clearly sees that they flow; recent laboratory tests on ice further reveal the conditions that control just how fast this happens.
Posted inEditors' Highlights
A Dipole Field from the Ediacaran-Cambrian Transition Onward?
The Ediacaran features an instable magnetic field complicating paleogeographic reconstructions; a new paleointensity study on late Ediacaran rocks indicates a weak but stable dipolar field.
Posted inEditors' Highlights
Mechanisms of Hydrothermal Ocean Plate Cooling Revealed
A combination of waveform tomography and hydrothermal modelling allows characterizing the mechanisms and reach of fluid flux and ocean plate cooling near mid-ocean ridges with unprecedented detail.
Posted inResearch Spotlights
Long-Term Sea Level Cycle Affects Predictions of Future Rise
New research confirms the existence of a regular, long-term fluctuation in sea level, perhaps caused by processes in Earth’s core.
Posted inEditors' Highlights
A Novel Thermobarometer to Infer Mantle Melting Conditions
The algorithm RevPET automatically reverses the complex multi-phase fractional crystallization path of oceanic basalts and offers new perspectives for advancing mantle thermobarometry.
Posted inEditors' Highlights
Coupled Mechanisms of Fluid Transport Across the Crust
Magmatic fluid moves up in the ductile zone through porosity waves, accumulates in high-porosity lenses, and migrates across the brittle zone in a convection pattern involving also meteoric fluid.
Posted inEditors' Highlights
New Inversion Method Improves Earthquake Source Imaging
A new method uses Bayesian inference to jointly invert for non-planar fault geometry and spatially variable slip (with associated uncertainties) in earthquake source modeling, based on geodetic data.