There has been longstanding controversy about whether the influence of lateral variations in
core-mantle boundary heat flow can be detected in paleomagnetic records of geomagnetic …

Documenting variations in the virtual dipole moment (VDM) of the geomagnetic field through
geologic time has recently been the subject of considerable interest, not the least because a …

We analyze more than two hundred and forty magnetic polarity reversals and excursions
over forty million years of time from numerical dynamos with heterogeneous boundary heat …

The Earth's internal magnetic field varies on timescales of months to billions of years. The
field is generated by convection in the liquid outer core, which in turn is influenced by the …

The question of whether virtual geomagnetic poles (VGPs) recorded during reversals and
excursions show a longitudinal preference is a controversial one amongst …

Constraining past changes in the strength and configuration of the geomagnetic field
provides a valuable perspective on the processes that govern the geodynamo. Here we …

SUMMARY A fundamental assumption in palaeomagnetism is that the geomagnetic field
closely approximates a geocentric axial dipole in time average. Here we use numerical …

Long-term temporal variations of the magnetic field (timescales> 10 Myr), characterized from
paleomagnetic data, have been hypothesized to reflect the evolution of Earth's deep interior …

Statistical studies of paleosecular variation (PSV) are used to infer the structure and
behavior of the geomagnetic field. This study presents a new database, paleosecular …

Thermal interactions between Earth's core and mantle provide the power that maintains the
geomagnetic field. However, the effect of these interactions and, in particular, the …