This review on polymorphism is a personal, non-comprehensive view on the field of
polymorphism–a term which is often misused. Indeed, the discussion about polymorphism …

Potential temporal and causal connections among various geologic events have long been
discussed in the geological literature. More recently, signs of common periodicities in these …

Earth as an Evolving Planetary System, Fourth Edition discusses key topics dealing with the
evolution and interaction through time of Earth's crust, mantle, core, atmosphere …

The Earth's inner core grows by the freezing of liquid iron at its surface. The point in history
at which this process initiated marks a step-change in the thermal evolution of the planet …

Abstract The Ediacaran Period was an interval of significant global transformation, marked
by major changes in the biosphere, cryosphere, hydrosphere and atmosphere, and possibly …

The study of the thermal evolution of Earth's interior is uncertain and controversial in many
respects, from the interpretation of petrologic observations used to infer the temperature and …

The time-averaged geomagnetic field is generally purported to be uniformitarian across
Earth history—close to a geocentric axial dipole, with average strength within one order of …

Changes in the geomagnetic field over geologic timescales can be used to study the
evolution and processes of its sources in Earth's deep interior. As a stark contrast to the …

In this study, seven isotopic databases are presented and analyzed to identify mantle and
crustal episodes on a global scale by focusing on periodicity ranging from 70 to 200 million …

Obtaining estimates of Earth's magnetic field strength in deep time is complicated by
nonideal rock magnetic behavior in many igneous rocks. In this study, we target anorthosite …