Resolving the modes of mantle convection through Earth history, ie when plate tectonics
started and what kind of mantle dynamics reigned before, is essential to the understanding …

Zircon rare earth element (REE) oxy-barometers have been widely used to calculate magma
oxygen fugacity. However, sometimes confusing results are obtained, such as extremely …

Abstract Models for when and how the continental crust was formed are constrained by
estimates in the rates of crustal growth. The record of events preserved in the continental …

Abstract Sensitive High-Resolution Ion Microprobe (SHRIMP) U-Pb analyses of zircons from
Paleoarchean (~ 3.4 Ga) tonalite-gneiss called the Older Metamorphic Tonalitic Gneiss …

The Great Unconformity, a profound gap in Earth's stratigraphic record often evident below
the base of the Cambrian system, has remained among the most enigmatic field …

Iron is a remarkable element in its relatively high abundance for its mass and its sensitivity to
(and control of) redox on a planetary scale over geologic time. Numerous volumes have …

The geodynamic regime of the early Earth remains elusive, with so far proposed hypotheses
ranging from stagnant lid convection to rapid plate tectonics. Available geological data are …

The dominant geodynamic processes that underpin the formation and evolution of Earth's
early crust remain enigmatic calling for new information from less studied ancient cratonic …

Continents form the most accessible parts of Earth, but their complex compositions make
their origin difficult to investigate. A novel approach based on a comprehensive compilation …

Sedimentary rocks and detrital minerals sample large areas of the continental crust, and
they are increasingly seen as a reliable archive for its global evolution. This study presents …