The biogeochemical cycling of metals in natural systems is often accompanied by stable
isotope fractionation which can now be measured due to recent analytical advances. In …

Abstract Models test our understanding of processes and can reach beyond the spatial and
temporal scales of measurements. Multi-component Reactive Transport Models (RTMs) …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

The lithium isotope system is increasingly being applied to a variety of Earth science studies,
as the burgeoning literature attests; over 180 papers have been published in the last twelve …

The long-term cooling, decline in the partial pressure of carbon dioxide, and the
establishment of permanent polar ice sheets during the Neogene period, have frequently …

We report Li isotope composition (δ 7 Li) of river-borne dissolved and solid material in the
largest River system on Earth, the Amazon River basin, to characterize Li isotope …

Abstract Knowledge of the lithium (Li) isotope fractionation factor during clay mineral
formation is a key parameter for Earth system models. This study refines our understanding …

Despite the influence of other geological and geomorphological factors, chemical
weathering at the Earth's surface is strongly controlled by climate. Thus, a measure of …

Rivers carry the dissolved and solid products of silicate mineral weathering, a process that
removes CO 2 from the atmosphere and provides a key negative climate feedback over …

In the Precambrian, reverse weathering—a process consuming oceanic silica, metal cations
and alkalinity to form marine clays—was a key control of the long-term carbon cycle …