As a significant carrier of uranium, thorium and the rare earth elements (REEs) at ppm level,
and hafnium at the percent level, zircon hosts a remarkable number of long-lived radioactive …

We report here the results of a study to develop natural zircon geochemical standards for
calibrating the U‐(Th)‐Pb geochronometer and Hf isotopic analyses. Additional data were …

Zircon has played a critically important role in our understanding of the growth and evolution
of the Earth. The U–Pb isotope system as preserved in zircon, more than any other mineral …

The covariant behavior of Lu-Hf and Sm-Nd isotopes during most magmatic processes has
long been recognized, but the details of this behavior in the depleted mantle reservoir have …

Continental crust forms from, and thus chemically depletes, the Earth's mantle. Evidence that
the Earth's mantle was already chemically depleted by melting before the formation of …

Potential applications of the Lu-Hf isotope system have long been impeded by the analytical
difficulties of obtaining data on a wide variety of geological materials. Many of these …

We report detailed high precision combined single grain U-Pb and Lu-Hf studies of early
zircons to obtain more reliable indications of the extent of mantle depletion and crustal …

In this study we demonstrate that the combination of U–Pb and Lu–Hf isotope data obtained
by laser ablation-inductive coupled plasma-mass spectrometry provides a powerful tool for …

The existing Hf isotope database for mid-ocean ridge basalts (MORB) is limited in both
quantity and precision. Nevertheless, in Hf–Nd isotope space, MORBs show a wide variation …

The genetic links among rift magmatism, crustal growth and water–rock interaction are an
important issue about mass and heat transfer between mantle and crust during …