The magnetic and color properties of the mineral hematite give clues to past environmental conditions and is being used for paleoclimatic reconstruction.
Mark J. Dekkers
Editor, JGR: Solid Earth
Posted inEditors' Highlights
An Unstable Magnetic Field in Central Asia 2500-1500 Years Ago
The geomagnetic field intensity – poorly described – varies spatially and temporally on centennial time scales. A recent study fills an important gap in Central Asia and discusses global implications.
Posted inEditors' Highlights
American Legacy Paleosecular Variation Data Unlocked
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.
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
New Spherical Cap Field Model for Europe and Direct Environs
New data on ancient burnt structures is integrated into a superior spherical cap field model for Europe.
Posted inEditors' Highlights
Marine Isotope Stage 6: First High-Resolution Field Record
A 200-year resolution record from the Black Sea for marine isotope stage 6 (130-180 ka) shows a stable geomagnetic field.
Posted inEditors' Highlights
Probing the Age of the Oldest Ocean Crust in the Pacific
A new study extends the calibration of the Mesozoic Sequence down to the Mid Jurassic with multiscale marine magnetic anomaly data, demonstrating extraordinarily high reversal frequency.
Posted inEditors' Vox
New Insights from the Magnetic Properties of Fault Rocks
Magnetic studies offer a new strand for the analysis of faulting processes and could help with better understanding of fault rupture and earthquakes.
Posted inEditors' Highlights
Machine Learning for Magnetics
Classic interpretation of aeromagnetic anomaly maps involves several steps with limiting boundary conditions; a recent study develops convolutional networks largely bypassing these issues.
Posted inEditors' Highlights
Unmixing Magnetic Components – An Experimental Twist
Various unmixing approaches are used in environmental magnetism, each starting from a different premise; now they are put to the test by scrutinizing experimental mixtures of known endmembers.